diff --git a/configs/arduino-due/nsh/Make.defs b/configs/arduino-due/nsh/Make.defs
index d4ea1b738b..a25c95536d 100644
--- a/configs/arduino-due/nsh/Make.defs
+++ b/configs/arduino-due/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/arduino-due/ostest/Make.defs b/configs/arduino-due/ostest/Make.defs
index 6e32ab612b..df1f2a3c79 100644
--- a/configs/arduino-due/ostest/Make.defs
+++ b/configs/arduino-due/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/cloudctrl/nsh/Make.defs b/configs/cloudctrl/nsh/Make.defs
index 1597edf95a..63801f76df 100644
--- a/configs/cloudctrl/nsh/Make.defs
+++ b/configs/cloudctrl/nsh/Make.defs
@@ -53,7 +53,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/compal_e86/nsh_highram/Make.defs b/configs/compal_e86/nsh_highram/Make.defs
index 6018a3811c..8fcf28e3ad 100644
--- a/configs/compal_e86/nsh_highram/Make.defs
+++ b/configs/compal_e86/nsh_highram/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -I "${shell cygpath -w $(OSMODIR)/src/shared/libosmocore/include} -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -I "${shell cygpath -w $(OSMODIR)/src/shared/libosmocore/include} -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 
 ifeq ("${CONFIG_SERCOMM_CONSOLE}","y")
   OSMODIR = "${shell cygpath -w $(TOPDIR)/../../osmocom-bb}
diff --git a/configs/efm32-dk3650/ostest/Make.defs b/configs/efm32-dk3650/ostest/Make.defs
index 281bf8e59b..653fc28eb2 100644
--- a/configs/efm32-dk3650/ostest/Make.defs
+++ b/configs/efm32-dk3650/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/ekk-lm3s9b96/nsh/Make.defs b/configs/ekk-lm3s9b96/nsh/Make.defs
index 4bc5e76f7d..4f1333f505 100644
--- a/configs/ekk-lm3s9b96/nsh/Make.defs
+++ b/configs/ekk-lm3s9b96/nsh/Make.defs
@@ -46,7 +46,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/ekk-lm3s9b96/ostest/Make.defs b/configs/ekk-lm3s9b96/ostest/Make.defs
index 8118f1fdc5..f1b6aaad69 100644
--- a/configs/ekk-lm3s9b96/ostest/Make.defs
+++ b/configs/ekk-lm3s9b96/ostest/Make.defs
@@ -46,7 +46,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/fire-stm32v2/nsh/Make.defs b/configs/fire-stm32v2/nsh/Make.defs
index 1dec8bc1a0..ac32a81789 100644
--- a/configs/fire-stm32v2/nsh/Make.defs
+++ b/configs/fire-stm32v2/nsh/Make.defs
@@ -53,7 +53,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/freedom-kl25z/minnsh/Make.defs b/configs/freedom-kl25z/minnsh/Make.defs
index e2c80f3994..a05f76bedc 100644
--- a/configs/freedom-kl25z/minnsh/Make.defs
+++ b/configs/freedom-kl25z/minnsh/Make.defs
@@ -44,7 +44,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
diff --git a/configs/freedom-kl25z/nsh/Make.defs b/configs/freedom-kl25z/nsh/Make.defs
index 83d9f2ad63..836c4e5095 100644
--- a/configs/freedom-kl25z/nsh/Make.defs
+++ b/configs/freedom-kl25z/nsh/Make.defs
@@ -44,7 +44,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
diff --git a/configs/freedom-kl25z/ostest/Make.defs b/configs/freedom-kl25z/ostest/Make.defs
index 734d73f0d9..1c9f1ef468 100644
--- a/configs/freedom-kl25z/ostest/Make.defs
+++ b/configs/freedom-kl25z/ostest/Make.defs
@@ -44,7 +44,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
diff --git a/configs/hymini-stm32v/buttons/Make.defs b/configs/hymini-stm32v/buttons/Make.defs
index cd41d7cf17..8c11e73868 100644
--- a/configs/hymini-stm32v/buttons/Make.defs
+++ b/configs/hymini-stm32v/buttons/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/hymini-stm32v/nsh/Make.defs b/configs/hymini-stm32v/nsh/Make.defs
index 5a0c0d5115..35b481b9c8 100644
--- a/configs/hymini-stm32v/nsh/Make.defs
+++ b/configs/hymini-stm32v/nsh/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/hymini-stm32v/nsh2/Make.defs b/configs/hymini-stm32v/nsh2/Make.defs
index 892557cb00..1cc53824cb 100644
--- a/configs/hymini-stm32v/nsh2/Make.defs
+++ b/configs/hymini-stm32v/nsh2/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/hymini-stm32v/ostest/Make.defs b/configs/hymini-stm32v/ostest/Make.defs
index 7df9e1f14a..17ec1fef7f 100644
--- a/configs/hymini-stm32v/ostest/Make.defs
+++ b/configs/hymini-stm32v/ostest/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/hymini-stm32v/usbmsc/Make.defs b/configs/hymini-stm32v/usbmsc/Make.defs
index aac8ab72a3..d10db6e07c 100644
--- a/configs/hymini-stm32v/usbmsc/Make.defs
+++ b/configs/hymini-stm32v/usbmsc/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/hymini-stm32v/usbnsh/Make.defs b/configs/hymini-stm32v/usbnsh/Make.defs
index 91d7d94b78..7fb36efe4b 100644
--- a/configs/hymini-stm32v/usbnsh/Make.defs
+++ b/configs/hymini-stm32v/usbnsh/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/hymini-stm32v/usbserial/Make.defs b/configs/hymini-stm32v/usbserial/Make.defs
index 44043fa713..228a3a7995 100644
--- a/configs/hymini-stm32v/usbserial/Make.defs
+++ b/configs/hymini-stm32v/usbserial/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/kwikstik-k40/ostest/Make.defs b/configs/kwikstik-k40/ostest/Make.defs
index 96c2b236cb..16487e7548 100644
--- a/configs/kwikstik-k40/ostest/Make.defs
+++ b/configs/kwikstik-k40/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lincoln60/nsh/Make.defs b/configs/lincoln60/nsh/Make.defs
index 3ee72f4ba9..5ba93b8c83 100644
--- a/configs/lincoln60/nsh/Make.defs
+++ b/configs/lincoln60/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lincoln60/ostest/Make.defs b/configs/lincoln60/ostest/Make.defs
index 796a86c801..a7c2fe3662 100644
--- a/configs/lincoln60/ostest/Make.defs
+++ b/configs/lincoln60/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm3s6432-s2e/nsh/Make.defs b/configs/lm3s6432-s2e/nsh/Make.defs
index d7109a4c1a..e0318a697d 100644
--- a/configs/lm3s6432-s2e/nsh/Make.defs
+++ b/configs/lm3s6432-s2e/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm3s6432-s2e/ostest/Make.defs b/configs/lm3s6432-s2e/ostest/Make.defs
index 264bc2baaa..bbf7b99557 100644
--- a/configs/lm3s6432-s2e/ostest/Make.defs
+++ b/configs/lm3s6432-s2e/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm3s6965-ek/discover/Make.defs b/configs/lm3s6965-ek/discover/Make.defs
index 96325b70fd..0f6e4bbd9d 100644
--- a/configs/lm3s6965-ek/discover/Make.defs
+++ b/configs/lm3s6965-ek/discover/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm3s6965-ek/nsh/Make.defs b/configs/lm3s6965-ek/nsh/Make.defs
index e07dce737a..0aac7fd3b5 100644
--- a/configs/lm3s6965-ek/nsh/Make.defs
+++ b/configs/lm3s6965-ek/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm3s6965-ek/nx/Make.defs b/configs/lm3s6965-ek/nx/Make.defs
index b826c1c31a..c53610e250 100644
--- a/configs/lm3s6965-ek/nx/Make.defs
+++ b/configs/lm3s6965-ek/nx/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm3s6965-ek/ostest/Make.defs b/configs/lm3s6965-ek/ostest/Make.defs
index 4306360689..7c992b2bfd 100644
--- a/configs/lm3s6965-ek/ostest/Make.defs
+++ b/configs/lm3s6965-ek/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm3s6965-ek/tcpecho/Make.defs b/configs/lm3s6965-ek/tcpecho/Make.defs
index 4b530de5cc..e3c94ddeef 100644
--- a/configs/lm3s6965-ek/tcpecho/Make.defs
+++ b/configs/lm3s6965-ek/tcpecho/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm3s8962-ek/nsh/Make.defs b/configs/lm3s8962-ek/nsh/Make.defs
index 3cd7d7150a..a5395b718a 100644
--- a/configs/lm3s8962-ek/nsh/Make.defs
+++ b/configs/lm3s8962-ek/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm3s8962-ek/nx/Make.defs b/configs/lm3s8962-ek/nx/Make.defs
index bfe12b56e9..1f98baa7f9 100644
--- a/configs/lm3s8962-ek/nx/Make.defs
+++ b/configs/lm3s8962-ek/nx/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm3s8962-ek/ostest/Make.defs b/configs/lm3s8962-ek/ostest/Make.defs
index 57ecc1f8aa..609c3724bb 100644
--- a/configs/lm3s8962-ek/ostest/Make.defs
+++ b/configs/lm3s8962-ek/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm4f120-launchpad/nsh/Make.defs b/configs/lm4f120-launchpad/nsh/Make.defs
index 333eaf0276..1b9eadc65c 100644
--- a/configs/lm4f120-launchpad/nsh/Make.defs
+++ b/configs/lm4f120-launchpad/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lm4f120-launchpad/ostest/Make.defs b/configs/lm4f120-launchpad/ostest/Make.defs
index 8513a83d9c..c0efe224f4 100644
--- a/configs/lm4f120-launchpad/ostest/Make.defs
+++ b/configs/lm4f120-launchpad/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lpc4330-xplorer/nsh/Make.defs b/configs/lpc4330-xplorer/nsh/Make.defs
index 0e05b19833..30a361bd38 100644
--- a/configs/lpc4330-xplorer/nsh/Make.defs
+++ b/configs/lpc4330-xplorer/nsh/Make.defs
@@ -65,7 +65,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lpc4330-xplorer/ostest/Make.defs b/configs/lpc4330-xplorer/ostest/Make.defs
index 0e05b19833..30a361bd38 100644
--- a/configs/lpc4330-xplorer/ostest/Make.defs
+++ b/configs/lpc4330-xplorer/ostest/Make.defs
@@ -65,7 +65,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lpcxpresso-lpc1768/dhcpd/Make.defs b/configs/lpcxpresso-lpc1768/dhcpd/Make.defs
index 457a73ed78..8eddddb057 100644
--- a/configs/lpcxpresso-lpc1768/dhcpd/Make.defs
+++ b/configs/lpcxpresso-lpc1768/dhcpd/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lpcxpresso-lpc1768/nsh/Make.defs b/configs/lpcxpresso-lpc1768/nsh/Make.defs
index 061001f38b..912477ac44 100644
--- a/configs/lpcxpresso-lpc1768/nsh/Make.defs
+++ b/configs/lpcxpresso-lpc1768/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lpcxpresso-lpc1768/nx/Make.defs b/configs/lpcxpresso-lpc1768/nx/Make.defs
index 6c3d948c51..cdd88eec78 100644
--- a/configs/lpcxpresso-lpc1768/nx/Make.defs
+++ b/configs/lpcxpresso-lpc1768/nx/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lpcxpresso-lpc1768/ostest/Make.defs b/configs/lpcxpresso-lpc1768/ostest/Make.defs
index a9f5a580f0..f6674b2784 100644
--- a/configs/lpcxpresso-lpc1768/ostest/Make.defs
+++ b/configs/lpcxpresso-lpc1768/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/lpcxpresso-lpc1768/thttpd/Make.defs b/configs/lpcxpresso-lpc1768/thttpd/Make.defs
index 6f48bf0eec..66f8237822 100644
--- a/configs/lpcxpresso-lpc1768/thttpd/Make.defs
+++ b/configs/lpcxpresso-lpc1768/thttpd/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
   NXFLATLDSCRIPT = -T "${shell cygpath -w $(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld}"
 else
   # Linux/Cygwin-native toolchain 
diff --git a/configs/lpcxpresso-lpc1768/usbmsc/Make.defs b/configs/lpcxpresso-lpc1768/usbmsc/Make.defs
index 44d026f63b..8a912f66b1 100644
--- a/configs/lpcxpresso-lpc1768/usbmsc/Make.defs
+++ b/configs/lpcxpresso-lpc1768/usbmsc/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/maple/nsh/Make.defs b/configs/maple/nsh/Make.defs
index 3a60483a97..9e409cafa9 100644
--- a/configs/maple/nsh/Make.defs
+++ b/configs/maple/nsh/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/maple/nx/Make.defs b/configs/maple/nx/Make.defs
index 793b015c0e..6ef1e56022 100644
--- a/configs/maple/nx/Make.defs
+++ b/configs/maple/nx/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/maple/usbnsh/Make.defs b/configs/maple/usbnsh/Make.defs
index ce10d4958a..001ef60ad7 100644
--- a/configs/maple/usbnsh/Make.defs
+++ b/configs/maple/usbnsh/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/mbed/hidkbd/Make.defs b/configs/mbed/hidkbd/Make.defs
index 3b62c879b6..18ca23b321 100644
--- a/configs/mbed/hidkbd/Make.defs
+++ b/configs/mbed/hidkbd/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/mbed/nsh/Make.defs b/configs/mbed/nsh/Make.defs
index 0496c63fac..d125af3b14 100644
--- a/configs/mbed/nsh/Make.defs
+++ b/configs/mbed/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/mikroe-stm32f4/fulldemo/Make.defs b/configs/mikroe-stm32f4/fulldemo/Make.defs
index 14ef2a2e86..86433ae80f 100644
--- a/configs/mikroe-stm32f4/fulldemo/Make.defs
+++ b/configs/mikroe-stm32f4/fulldemo/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/mikroe-stm32f4/kostest/Make.defs b/configs/mikroe-stm32f4/kostest/Make.defs
index 5e96155933..8c7ed82da4 100644
--- a/configs/mikroe-stm32f4/kostest/Make.defs
+++ b/configs/mikroe-stm32f4/kostest/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/mikroe-stm32f4/nsh/Make.defs b/configs/mikroe-stm32f4/nsh/Make.defs
index 48b63ac7a1..e41498d1b4 100644
--- a/configs/mikroe-stm32f4/nsh/Make.defs
+++ b/configs/mikroe-stm32f4/nsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/mikroe-stm32f4/nx/Make.defs b/configs/mikroe-stm32f4/nx/Make.defs
index 14ef2a2e86..86433ae80f 100644
--- a/configs/mikroe-stm32f4/nx/Make.defs
+++ b/configs/mikroe-stm32f4/nx/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/mikroe-stm32f4/nxlines/Make.defs b/configs/mikroe-stm32f4/nxlines/Make.defs
index 14ef2a2e86..86433ae80f 100644
--- a/configs/mikroe-stm32f4/nxlines/Make.defs
+++ b/configs/mikroe-stm32f4/nxlines/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/mikroe-stm32f4/nxtext/Make.defs b/configs/mikroe-stm32f4/nxtext/Make.defs
index 14ef2a2e86..86433ae80f 100644
--- a/configs/mikroe-stm32f4/nxtext/Make.defs
+++ b/configs/mikroe-stm32f4/nxtext/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/mikroe-stm32f4/usbnsh/Make.defs b/configs/mikroe-stm32f4/usbnsh/Make.defs
index 14ef2a2e86..86433ae80f 100644
--- a/configs/mikroe-stm32f4/usbnsh/Make.defs
+++ b/configs/mikroe-stm32f4/usbnsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/nucleus2g/nsh/Make.defs b/configs/nucleus2g/nsh/Make.defs
index 638e16daac..11d9bad75a 100644
--- a/configs/nucleus2g/nsh/Make.defs
+++ b/configs/nucleus2g/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/nucleus2g/ostest/Make.defs b/configs/nucleus2g/ostest/Make.defs
index ee74fa746d..af20899a76 100644
--- a/configs/nucleus2g/ostest/Make.defs
+++ b/configs/nucleus2g/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/nucleus2g/usbmsc/Make.defs b/configs/nucleus2g/usbmsc/Make.defs
index 7051d6f5f9..f55312fb5c 100644
--- a/configs/nucleus2g/usbmsc/Make.defs
+++ b/configs/nucleus2g/usbmsc/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/nucleus2g/usbserial/Make.defs b/configs/nucleus2g/usbserial/Make.defs
index 0e5e10a641..6825195fa6 100644
--- a/configs/nucleus2g/usbserial/Make.defs
+++ b/configs/nucleus2g/usbserial/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/nutiny-nuc120/nsh/Make.defs b/configs/nutiny-nuc120/nsh/Make.defs
index 7feb64a150..330d4ac0ea 100644
--- a/configs/nutiny-nuc120/nsh/Make.defs
+++ b/configs/nutiny-nuc120/nsh/Make.defs
@@ -44,7 +44,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
diff --git a/configs/nutiny-nuc120/ostest/Make.defs b/configs/nutiny-nuc120/ostest/Make.defs
index 945e9ef5cc..26b8aa89d9 100644
--- a/configs/nutiny-nuc120/ostest/Make.defs
+++ b/configs/nutiny-nuc120/ostest/Make.defs
@@ -44,7 +44,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
diff --git a/configs/olimex-lpc1766stk/ftpc/Make.defs b/configs/olimex-lpc1766stk/ftpc/Make.defs
index 12419fc556..96d91413e9 100644
--- a/configs/olimex-lpc1766stk/ftpc/Make.defs
+++ b/configs/olimex-lpc1766stk/ftpc/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-lpc1766stk/hidkbd/Make.defs b/configs/olimex-lpc1766stk/hidkbd/Make.defs
index fcd717c854..675135e421 100644
--- a/configs/olimex-lpc1766stk/hidkbd/Make.defs
+++ b/configs/olimex-lpc1766stk/hidkbd/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-lpc1766stk/nettest/Make.defs b/configs/olimex-lpc1766stk/nettest/Make.defs
index 77c7203642..8c6760b6db 100644
--- a/configs/olimex-lpc1766stk/nettest/Make.defs
+++ b/configs/olimex-lpc1766stk/nettest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-lpc1766stk/nsh/Make.defs b/configs/olimex-lpc1766stk/nsh/Make.defs
index 1759a7dba4..84195b4535 100644
--- a/configs/olimex-lpc1766stk/nsh/Make.defs
+++ b/configs/olimex-lpc1766stk/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-lpc1766stk/nx/Make.defs b/configs/olimex-lpc1766stk/nx/Make.defs
index 2b9e95d6bc..716fac4209 100644
--- a/configs/olimex-lpc1766stk/nx/Make.defs
+++ b/configs/olimex-lpc1766stk/nx/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-lpc1766stk/ostest/Make.defs b/configs/olimex-lpc1766stk/ostest/Make.defs
index afb1bd1d03..2dbc62ec53 100644
--- a/configs/olimex-lpc1766stk/ostest/Make.defs
+++ b/configs/olimex-lpc1766stk/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-lpc1766stk/slip-httpd/Make.defs b/configs/olimex-lpc1766stk/slip-httpd/Make.defs
index fe5b9093b9..95aa186936 100644
--- a/configs/olimex-lpc1766stk/slip-httpd/Make.defs
+++ b/configs/olimex-lpc1766stk/slip-httpd/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-lpc1766stk/thttpd/Make.defs b/configs/olimex-lpc1766stk/thttpd/Make.defs
index e84ce35030..d218a95f23 100644
--- a/configs/olimex-lpc1766stk/thttpd/Make.defs
+++ b/configs/olimex-lpc1766stk/thttpd/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-lpc1766stk/usbmsc/Make.defs b/configs/olimex-lpc1766stk/usbmsc/Make.defs
index 04b3b9fe93..1caeb34d45 100644
--- a/configs/olimex-lpc1766stk/usbmsc/Make.defs
+++ b/configs/olimex-lpc1766stk/usbmsc/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-lpc1766stk/usbserial/Make.defs b/configs/olimex-lpc1766stk/usbserial/Make.defs
index d2fa3edcd1..e694d93141 100644
--- a/configs/olimex-lpc1766stk/usbserial/Make.defs
+++ b/configs/olimex-lpc1766stk/usbserial/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-lpc1766stk/zmodem/Make.defs b/configs/olimex-lpc1766stk/zmodem/Make.defs
index d3215e2bc3..639af44020 100644
--- a/configs/olimex-lpc1766stk/zmodem/Make.defs
+++ b/configs/olimex-lpc1766stk/zmodem/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-stm32-p107/nsh/Make.defs b/configs/olimex-stm32-p107/nsh/Make.defs
index c37edd257e..e5c95641e8 100644
--- a/configs/olimex-stm32-p107/nsh/Make.defs
+++ b/configs/olimex-stm32-p107/nsh/Make.defs
@@ -61,7 +61,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-stm32-p107/ostest/Make.defs b/configs/olimex-stm32-p107/ostest/Make.defs
index e027084280..35ca754588 100644
--- a/configs/olimex-stm32-p107/ostest/Make.defs
+++ b/configs/olimex-stm32-p107/ostest/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/olimex-stm32-p207/nsh/Make.defs b/configs/olimex-stm32-p207/nsh/Make.defs
index 2efca17362..c065889b70 100644
--- a/configs/olimex-stm32-p207/nsh/Make.defs
+++ b/configs/olimex-stm32-p207/nsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/open1788/knsh/Make.defs b/configs/open1788/knsh/Make.defs
index b8dadfa24b..32b9e3abe3 100644
--- a/configs/open1788/knsh/Make.defs
+++ b/configs/open1788/knsh/Make.defs
@@ -46,7 +46,6 @@ ifeq ($(WINTOOL),y)
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)memory.ld}"
   ARCHSCRIPT += -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)kernel-space.ld}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)$(DELIM)tools$(DELIM)mkdeps.sh
diff --git a/configs/open1788/nsh/Make.defs b/configs/open1788/nsh/Make.defs
index 4b9be13ca3..7b1354414f 100644
--- a/configs/open1788/nsh/Make.defs
+++ b/configs/open1788/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)$(DELIM)tools$(DELIM)mkdeps.sh
diff --git a/configs/open1788/nxlines/Make.defs b/configs/open1788/nxlines/Make.defs
index 6c71517c35..fbeb9f6058 100644
--- a/configs/open1788/nxlines/Make.defs
+++ b/configs/open1788/nxlines/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)$(DELIM)tools$(DELIM)mkdeps.sh
diff --git a/configs/open1788/ostest/Make.defs b/configs/open1788/ostest/Make.defs
index 8900986864..31e3b6ed1f 100644
--- a/configs/open1788/ostest/Make.defs
+++ b/configs/open1788/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/pcduino-a10/nsh/Make.defs b/configs/pcduino-a10/nsh/Make.defs
index b7eaa815c8..f64bb2394c 100644
--- a/configs/pcduino-a10/nsh/Make.defs
+++ b/configs/pcduino-a10/nsh/Make.defs
@@ -44,7 +44,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/px4fmu-v2_upstream/nsh/Make.defs b/configs/px4fmu-v2_upstream/nsh/Make.defs
index ad18a1da36..231ac9f78e 100644
--- a/configs/px4fmu-v2_upstream/nsh/Make.defs
+++ b/configs/px4fmu-v2_upstream/nsh/Make.defs
@@ -46,7 +46,6 @@ NM = $(CROSSDEV)nm
 OBJCOPY = $(CROSSDEV)objcopy
 OBJDUMP = $(CROSSDEV)objdump
 
-MAXOPTIMIZATION = -O3
 ARCHCPUFLAGS = -mcpu=cortex-m4 \
     -mthumb \
     -march=armv7e-m \
diff --git a/configs/sam3u-ek/knsh/Make.defs b/configs/sam3u-ek/knsh/Make.defs
index 05bfca7225..5a9fb0bd31 100644
--- a/configs/sam3u-ek/knsh/Make.defs
+++ b/configs/sam3u-ek/knsh/Make.defs
@@ -46,7 +46,6 @@ ifeq ($(WINTOOL),y)
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)memory.ld}"
   ARCHSCRIPT += -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)kernel-space.ld}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)$(DELIM)tools$(DELIM)mkdeps.sh
diff --git a/configs/sam3u-ek/nsh/Make.defs b/configs/sam3u-ek/nsh/Make.defs
index e82a3e9011..d441e82bba 100644
--- a/configs/sam3u-ek/nsh/Make.defs
+++ b/configs/sam3u-ek/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/sam3u-ek/nx/Make.defs b/configs/sam3u-ek/nx/Make.defs
index 25dad43a7e..453cdeafdc 100644
--- a/configs/sam3u-ek/nx/Make.defs
+++ b/configs/sam3u-ek/nx/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/sam3u-ek/nxwm/Make.defs b/configs/sam3u-ek/nxwm/Make.defs
index c323f6696a..63472e2f5e 100644
--- a/configs/sam3u-ek/nxwm/Make.defs
+++ b/configs/sam3u-ek/nxwm/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/sam3u-ek/ostest/Make.defs b/configs/sam3u-ek/ostest/Make.defs
index 95642c00b7..f526d7eb4b 100644
--- a/configs/sam3u-ek/ostest/Make.defs
+++ b/configs/sam3u-ek/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/sam4l-xplained/nsh/Make.defs b/configs/sam4l-xplained/nsh/Make.defs
index 58e147d386..1f5dc5688b 100644
--- a/configs/sam4l-xplained/nsh/Make.defs
+++ b/configs/sam4l-xplained/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/sam4l-xplained/ostest/Make.defs b/configs/sam4l-xplained/ostest/Make.defs
index 38a56d4c84..c133719520 100644
--- a/configs/sam4l-xplained/ostest/Make.defs
+++ b/configs/sam4l-xplained/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/sam4s-xplained/nsh/Make.defs b/configs/sam4s-xplained/nsh/Make.defs
index 53814cb463..3398ef65ec 100644
--- a/configs/sam4s-xplained/nsh/Make.defs
+++ b/configs/sam4s-xplained/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/sam4s-xplained/ostest/Make.defs b/configs/sam4s-xplained/ostest/Make.defs
index cd6637e026..7e38a5022b 100644
--- a/configs/sam4s-xplained/ostest/Make.defs
+++ b/configs/sam4s-xplained/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/sama5d3x-ek/demo/Make.defs b/configs/sama5d3x-ek/demo/Make.defs
index 763131ff75..c753793379 100644
--- a/configs/sama5d3x-ek/demo/Make.defs
+++ b/configs/sama5d3x-ek/demo/Make.defs
@@ -61,7 +61,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/sama5d3x-ek/hello/Make.defs b/configs/sama5d3x-ek/hello/Make.defs
index 3627f5826d..7d53ca0403 100644
--- a/configs/sama5d3x-ek/hello/Make.defs
+++ b/configs/sama5d3x-ek/hello/Make.defs
@@ -61,7 +61,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/sama5d3x-ek/norboot/Make.defs b/configs/sama5d3x-ek/norboot/Make.defs
index d7c054740f..01bb08f7ab 100644
--- a/configs/sama5d3x-ek/norboot/Make.defs
+++ b/configs/sama5d3x-ek/norboot/Make.defs
@@ -61,7 +61,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/sama5d3x-ek/nsh/Make.defs b/configs/sama5d3x-ek/nsh/Make.defs
index 90ecebe881..dcc2a4731f 100644
--- a/configs/sama5d3x-ek/nsh/Make.defs
+++ b/configs/sama5d3x-ek/nsh/Make.defs
@@ -61,7 +61,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/sama5d3x-ek/nx/Make.defs b/configs/sama5d3x-ek/nx/Make.defs
index 33ef6729bc..06e54dd9db 100644
--- a/configs/sama5d3x-ek/nx/Make.defs
+++ b/configs/sama5d3x-ek/nx/Make.defs
@@ -61,7 +61,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/sama5d3x-ek/nxwm/Make.defs b/configs/sama5d3x-ek/nxwm/Make.defs
index cfc7becf7f..357d2b6050 100644
--- a/configs/sama5d3x-ek/nxwm/Make.defs
+++ b/configs/sama5d3x-ek/nxwm/Make.defs
@@ -61,7 +61,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/sama5d3x-ek/ostest/Make.defs b/configs/sama5d3x-ek/ostest/Make.defs
index 1f3fca8d39..56e4fcdad3 100644
--- a/configs/sama5d3x-ek/ostest/Make.defs
+++ b/configs/sama5d3x-ek/ostest/Make.defs
@@ -61,7 +61,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/sama5d3x-ek/ov2640/Make.defs b/configs/sama5d3x-ek/ov2640/Make.defs
index dad9ef51be..629aacad9a 100644
--- a/configs/sama5d3x-ek/ov2640/Make.defs
+++ b/configs/sama5d3x-ek/ov2640/Make.defs
@@ -61,7 +61,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/shenzhou/nsh/Make.defs b/configs/shenzhou/nsh/Make.defs
index b834454200..b86405db2a 100644
--- a/configs/shenzhou/nsh/Make.defs
+++ b/configs/shenzhou/nsh/Make.defs
@@ -53,7 +53,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/shenzhou/nxwm/Make.defs b/configs/shenzhou/nxwm/Make.defs
index a902ec066b..4bf903e1b9 100644
--- a/configs/shenzhou/nxwm/Make.defs
+++ b/configs/shenzhou/nxwm/Make.defs
@@ -53,7 +53,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/shenzhou/thttpd/Make.defs b/configs/shenzhou/thttpd/Make.defs
index d5c0549c02..a1be960ef9 100644
--- a/configs/shenzhou/thttpd/Make.defs
+++ b/configs/shenzhou/thttpd/Make.defs
@@ -53,7 +53,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/spark/composite/Make.defs b/configs/spark/composite/Make.defs
index 581b15fec6..09b8ad4207 100644
--- a/configs/spark/composite/Make.defs
+++ b/configs/spark/composite/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/spark/nsh/Make.defs b/configs/spark/nsh/Make.defs
index 9807642e2f..3caa7d22e5 100644
--- a/configs/spark/nsh/Make.defs
+++ b/configs/spark/nsh/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/spark/usbmsc/Make.defs b/configs/spark/usbmsc/Make.defs
index 3a17baea30..11cdd24118 100644
--- a/configs/spark/usbmsc/Make.defs
+++ b/configs/spark/usbmsc/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/spark/usbnsh/Make.defs b/configs/spark/usbnsh/Make.defs
index ce10d4958a..001ef60ad7 100644
--- a/configs/spark/usbnsh/Make.defs
+++ b/configs/spark/usbnsh/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/spark/usbserial/Make.defs b/configs/spark/usbserial/Make.defs
index 9ee3d151ea..30fcf96f34 100644
--- a/configs/spark/usbserial/Make.defs
+++ b/configs/spark/usbserial/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3210e-eval/RIDE/Make.defs b/configs/stm3210e-eval/RIDE/Make.defs
index b6839f0ae5..d838c78acc 100644
--- a/configs/stm3210e-eval/RIDE/Make.defs
+++ b/configs/stm3210e-eval/RIDE/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3210e-eval/buttons/Make.defs b/configs/stm3210e-eval/buttons/Make.defs
index 8fb51490ab..18da2462fe 100644
--- a/configs/stm3210e-eval/buttons/Make.defs
+++ b/configs/stm3210e-eval/buttons/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3210e-eval/composite/Make.defs b/configs/stm3210e-eval/composite/Make.defs
index 68ba84575e..172d2c8820 100644
--- a/configs/stm3210e-eval/composite/Make.defs
+++ b/configs/stm3210e-eval/composite/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3210e-eval/nsh/Make.defs b/configs/stm3210e-eval/nsh/Make.defs
index d27e0d7392..15110b0a66 100644
--- a/configs/stm3210e-eval/nsh/Make.defs
+++ b/configs/stm3210e-eval/nsh/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3210e-eval/nsh2/Make.defs b/configs/stm3210e-eval/nsh2/Make.defs
index 12d479d4b8..2511d23ec1 100644
--- a/configs/stm3210e-eval/nsh2/Make.defs
+++ b/configs/stm3210e-eval/nsh2/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3210e-eval/nx/Make.defs b/configs/stm3210e-eval/nx/Make.defs
index f96f33dc34..a916070a6d 100644
--- a/configs/stm3210e-eval/nx/Make.defs
+++ b/configs/stm3210e-eval/nx/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3210e-eval/ostest/Make.defs b/configs/stm3210e-eval/ostest/Make.defs
index 62d27033b9..3d7cd70aa7 100644
--- a/configs/stm3210e-eval/ostest/Make.defs
+++ b/configs/stm3210e-eval/ostest/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3210e-eval/pm/Make.defs b/configs/stm3210e-eval/pm/Make.defs
index 49baa7d621..2dffb3f26f 100644
--- a/configs/stm3210e-eval/pm/Make.defs
+++ b/configs/stm3210e-eval/pm/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3210e-eval/usbmsc/Make.defs b/configs/stm3210e-eval/usbmsc/Make.defs
index 2660062b15..ef5c3e6a32 100644
--- a/configs/stm3210e-eval/usbmsc/Make.defs
+++ b/configs/stm3210e-eval/usbmsc/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3210e-eval/usbserial/Make.defs b/configs/stm3210e-eval/usbserial/Make.defs
index d1b93eeeb8..cc5951d249 100644
--- a/configs/stm3210e-eval/usbserial/Make.defs
+++ b/configs/stm3210e-eval/usbserial/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3220g-eval/dhcpd/Make.defs b/configs/stm3220g-eval/dhcpd/Make.defs
index f88486f023..bcf352f586 100644
--- a/configs/stm3220g-eval/dhcpd/Make.defs
+++ b/configs/stm3220g-eval/dhcpd/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3220g-eval/nettest/Make.defs b/configs/stm3220g-eval/nettest/Make.defs
index f9b1795a92..2aa7d790e1 100644
--- a/configs/stm3220g-eval/nettest/Make.defs
+++ b/configs/stm3220g-eval/nettest/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3220g-eval/nsh/Make.defs b/configs/stm3220g-eval/nsh/Make.defs
index 74248f1a8e..8c9da90349 100644
--- a/configs/stm3220g-eval/nsh/Make.defs
+++ b/configs/stm3220g-eval/nsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3220g-eval/nsh2/Make.defs b/configs/stm3220g-eval/nsh2/Make.defs
index f4a41a5557..2c5d27ed3c 100644
--- a/configs/stm3220g-eval/nsh2/Make.defs
+++ b/configs/stm3220g-eval/nsh2/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3220g-eval/nxwm/Make.defs b/configs/stm3220g-eval/nxwm/Make.defs
index fe284fdd15..50b21d20fe 100644
--- a/configs/stm3220g-eval/nxwm/Make.defs
+++ b/configs/stm3220g-eval/nxwm/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3220g-eval/ostest/Make.defs b/configs/stm3220g-eval/ostest/Make.defs
index 9a78146ddd..38a75ad0af 100644
--- a/configs/stm3220g-eval/ostest/Make.defs
+++ b/configs/stm3220g-eval/ostest/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3220g-eval/telnetd/Make.defs b/configs/stm3220g-eval/telnetd/Make.defs
index 4af7ef1ac6..ab8bab242f 100644
--- a/configs/stm3220g-eval/telnetd/Make.defs
+++ b/configs/stm3220g-eval/telnetd/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/dhcpd/Make.defs b/configs/stm3240g-eval/dhcpd/Make.defs
index 712ce41f38..3f942e7c3a 100644
--- a/configs/stm3240g-eval/dhcpd/Make.defs
+++ b/configs/stm3240g-eval/dhcpd/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/discover/Make.defs b/configs/stm3240g-eval/discover/Make.defs
index 5fd7cee7f6..20e3d05b26 100644
--- a/configs/stm3240g-eval/discover/Make.defs
+++ b/configs/stm3240g-eval/discover/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/knxwm/Make.defs b/configs/stm3240g-eval/knxwm/Make.defs
index c35bb696a3..6a86be4610 100644
--- a/configs/stm3240g-eval/knxwm/Make.defs
+++ b/configs/stm3240g-eval/knxwm/Make.defs
@@ -46,7 +46,6 @@ ifeq ($(WINTOOL),y)
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)memory.ld}"
   ARCHSCRIPT += -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)kernel-space.ld}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/nettest/Make.defs b/configs/stm3240g-eval/nettest/Make.defs
index e8fea1cc19..39e3d0c687 100644
--- a/configs/stm3240g-eval/nettest/Make.defs
+++ b/configs/stm3240g-eval/nettest/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/nsh/Make.defs b/configs/stm3240g-eval/nsh/Make.defs
index ec84160e8c..f52076c151 100644
--- a/configs/stm3240g-eval/nsh/Make.defs
+++ b/configs/stm3240g-eval/nsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/nsh2/Make.defs b/configs/stm3240g-eval/nsh2/Make.defs
index e0aeeae10d..1f63de32ec 100644
--- a/configs/stm3240g-eval/nsh2/Make.defs
+++ b/configs/stm3240g-eval/nsh2/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/nxconsole/Make.defs b/configs/stm3240g-eval/nxconsole/Make.defs
index aac27e780c..180f223f08 100644
--- a/configs/stm3240g-eval/nxconsole/Make.defs
+++ b/configs/stm3240g-eval/nxconsole/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/nxwm/Make.defs b/configs/stm3240g-eval/nxwm/Make.defs
index 0083004bc2..9f14104f98 100644
--- a/configs/stm3240g-eval/nxwm/Make.defs
+++ b/configs/stm3240g-eval/nxwm/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/ostest/Make.defs b/configs/stm3240g-eval/ostest/Make.defs
index af21c63028..065d56d858 100644
--- a/configs/stm3240g-eval/ostest/Make.defs
+++ b/configs/stm3240g-eval/ostest/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/telnetd/Make.defs b/configs/stm3240g-eval/telnetd/Make.defs
index 003ec1882d..9e25e7cd2e 100644
--- a/configs/stm3240g-eval/telnetd/Make.defs
+++ b/configs/stm3240g-eval/telnetd/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/webserver/Make.defs b/configs/stm3240g-eval/webserver/Make.defs
index 3888b225ca..4e8071638c 100644
--- a/configs/stm3240g-eval/webserver/Make.defs
+++ b/configs/stm3240g-eval/webserver/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm3240g-eval/xmlrpc/Make.defs b/configs/stm3240g-eval/xmlrpc/Make.defs
index c95d54699e..5e81d46baf 100644
--- a/configs/stm3240g-eval/xmlrpc/Make.defs
+++ b/configs/stm3240g-eval/xmlrpc/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32_tiny/nsh/Make.defs b/configs/stm32_tiny/nsh/Make.defs
index 5741654302..ae85ccda2f 100644
--- a/configs/stm32_tiny/nsh/Make.defs
+++ b/configs/stm32_tiny/nsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32_tiny/usbnsh/Make.defs b/configs/stm32_tiny/usbnsh/Make.defs
index d06129143c..059a0529c5 100644
--- a/configs/stm32_tiny/usbnsh/Make.defs
+++ b/configs/stm32_tiny/usbnsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f100rc_generic/nsh/Make.defs b/configs/stm32f100rc_generic/nsh/Make.defs
index ec7eb9e47b..751ebccea4 100644
--- a/configs/stm32f100rc_generic/nsh/Make.defs
+++ b/configs/stm32f100rc_generic/nsh/Make.defs
@@ -48,7 +48,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f100rc_generic/ostest/Make.defs b/configs/stm32f100rc_generic/ostest/Make.defs
index cec78d5e16..525448ecda 100644
--- a/configs/stm32f100rc_generic/ostest/Make.defs
+++ b/configs/stm32f100rc_generic/ostest/Make.defs
@@ -48,7 +48,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f3discovery/nsh/Make.defs b/configs/stm32f3discovery/nsh/Make.defs
index 045926d3f9..43442bf104 100644
--- a/configs/stm32f3discovery/nsh/Make.defs
+++ b/configs/stm32f3discovery/nsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f3discovery/ostest/Make.defs b/configs/stm32f3discovery/ostest/Make.defs
index db9b4b0282..e0b655a4c7 100644
--- a/configs/stm32f3discovery/ostest/Make.defs
+++ b/configs/stm32f3discovery/ostest/Make.defs
@@ -44,7 +44,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
diff --git a/configs/stm32f3discovery/usbnsh/Make.defs b/configs/stm32f3discovery/usbnsh/Make.defs
index 2669947fec..ebd536ee3e 100644
--- a/configs/stm32f3discovery/usbnsh/Make.defs
+++ b/configs/stm32f3discovery/usbnsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f429i-disco/extflash/Make.defs b/configs/stm32f429i-disco/extflash/Make.defs
index 2e99e38ac4..d65ff17fc8 100644
--- a/configs/stm32f429i-disco/extflash/Make.defs
+++ b/configs/stm32f429i-disco/extflash/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f429i-disco/nsh/Make.defs b/configs/stm32f429i-disco/nsh/Make.defs
index 4685b6e47d..20e541e2dd 100644
--- a/configs/stm32f429i-disco/nsh/Make.defs
+++ b/configs/stm32f429i-disco/nsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f429i-disco/ostest/Make.defs b/configs/stm32f429i-disco/ostest/Make.defs
index 4685b6e47d..20e541e2dd 100644
--- a/configs/stm32f429i-disco/ostest/Make.defs
+++ b/configs/stm32f429i-disco/ostest/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f429i-disco/usbmsc/Make.defs b/configs/stm32f429i-disco/usbmsc/Make.defs
index 2e99e38ac4..d65ff17fc8 100644
--- a/configs/stm32f429i-disco/usbmsc/Make.defs
+++ b/configs/stm32f429i-disco/usbmsc/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f429i-disco/usbnsh/Make.defs b/configs/stm32f429i-disco/usbnsh/Make.defs
index 2e99e38ac4..d65ff17fc8 100644
--- a/configs/stm32f429i-disco/usbnsh/Make.defs
+++ b/configs/stm32f429i-disco/usbnsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f4discovery/cxxtest/Make.defs b/configs/stm32f4discovery/cxxtest/Make.defs
index f0cdcd8258..1278e854b9 100644
--- a/configs/stm32f4discovery/cxxtest/Make.defs
+++ b/configs/stm32f4discovery/cxxtest/Make.defs
@@ -64,7 +64,6 @@ ifeq ($(WINTOOL),y)
     -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}" \
     -isystem "${shell cygpath -w $(TOPDIR)/include/uClibc++}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f4discovery/elf/Make.defs b/configs/stm32f4discovery/elf/Make.defs
index 07b1f51e28..e5042bd2f4 100644
--- a/configs/stm32f4discovery/elf/Make.defs
+++ b/configs/stm32f4discovery/elf/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f4discovery/kostest/Make.defs b/configs/stm32f4discovery/kostest/Make.defs
index 40ccd96649..60f6cc7230 100644
--- a/configs/stm32f4discovery/kostest/Make.defs
+++ b/configs/stm32f4discovery/kostest/Make.defs
@@ -43,7 +43,6 @@ ifeq ($(WINTOOL),y)
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)memory.ld}"
   ARCHSCRIPT += -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)kernel-space.ld}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/stm32f4discovery/nsh/Make.defs b/configs/stm32f4discovery/nsh/Make.defs
index 5cc67332a3..96beafa67a 100644
--- a/configs/stm32f4discovery/nsh/Make.defs
+++ b/configs/stm32f4discovery/nsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f4discovery/nxlines/Make.defs b/configs/stm32f4discovery/nxlines/Make.defs
index 355d53df30..6a12b20ebb 100644
--- a/configs/stm32f4discovery/nxlines/Make.defs
+++ b/configs/stm32f4discovery/nxlines/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f4discovery/ostest/Make.defs b/configs/stm32f4discovery/ostest/Make.defs
index 50b49046a3..e520392ba6 100644
--- a/configs/stm32f4discovery/ostest/Make.defs
+++ b/configs/stm32f4discovery/ostest/Make.defs
@@ -44,7 +44,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
diff --git a/configs/stm32f4discovery/pm/Make.defs b/configs/stm32f4discovery/pm/Make.defs
index 4dd6733f87..7564844ae9 100644
--- a/configs/stm32f4discovery/pm/Make.defs
+++ b/configs/stm32f4discovery/pm/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f4discovery/posix_spawn/Make.defs b/configs/stm32f4discovery/posix_spawn/Make.defs
index 4022a77e90..aa0876d947 100644
--- a/configs/stm32f4discovery/posix_spawn/Make.defs
+++ b/configs/stm32f4discovery/posix_spawn/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32f4discovery/usbnsh/Make.defs b/configs/stm32f4discovery/usbnsh/Make.defs
index 9a0710ea34..2c05aff2d6 100644
--- a/configs/stm32f4discovery/usbnsh/Make.defs
+++ b/configs/stm32f4discovery/usbnsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32ldiscovery/nsh/Make.defs b/configs/stm32ldiscovery/nsh/Make.defs
index 44f98749a0..2992fe4b1a 100644
--- a/configs/stm32ldiscovery/nsh/Make.defs
+++ b/configs/stm32ldiscovery/nsh/Make.defs
@@ -47,7 +47,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32vldiscovery/nsh/Make.defs b/configs/stm32vldiscovery/nsh/Make.defs
index d55160bb6d..84ec71905f 100644
--- a/configs/stm32vldiscovery/nsh/Make.defs
+++ b/configs/stm32vldiscovery/nsh/Make.defs
@@ -48,7 +48,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/stm32vldiscovery/ostest/Make.defs b/configs/stm32vldiscovery/ostest/Make.defs
index 3a93768f42..b39619dab6 100644
--- a/configs/stm32vldiscovery/ostest/Make.defs
+++ b/configs/stm32vldiscovery/ostest/Make.defs
@@ -48,7 +48,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/twr-k60n512/nsh/Make.defs b/configs/twr-k60n512/nsh/Make.defs
index c3583fa74e..cfaaf4191c 100644
--- a/configs/twr-k60n512/nsh/Make.defs
+++ b/configs/twr-k60n512/nsh/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/twr-k60n512/ostest/Make.defs b/configs/twr-k60n512/ostest/Make.defs
index b11b19d23a..e791e71370 100644
--- a/configs/twr-k60n512/ostest/Make.defs
+++ b/configs/twr-k60n512/ostest/Make.defs
@@ -45,7 +45,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/viewtool-stm32f107/highpri/Make.defs b/configs/viewtool-stm32f107/highpri/Make.defs
index 251118cf35..3e54b964dc 100644
--- a/configs/viewtool-stm32f107/highpri/Make.defs
+++ b/configs/viewtool-stm32f107/highpri/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/viewtool-stm32f107/netnsh/Make.defs b/configs/viewtool-stm32f107/netnsh/Make.defs
index ce53b53ff5..ecccf51be7 100644
--- a/configs/viewtool-stm32f107/netnsh/Make.defs
+++ b/configs/viewtool-stm32f107/netnsh/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/viewtool-stm32f107/nsh/Make.defs b/configs/viewtool-stm32f107/nsh/Make.defs
index 62beecc06f..01f9dddbf5 100644
--- a/configs/viewtool-stm32f107/nsh/Make.defs
+++ b/configs/viewtool-stm32f107/nsh/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/vsn/nsh/Make.defs b/configs/vsn/nsh/Make.defs
index dd5b98f2fc..0e2541a930 100644
--- a/configs/vsn/nsh/Make.defs
+++ b/configs/vsn/nsh/Make.defs
@@ -51,7 +51,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
-  MAXOPTIMIZATION = -O2
 else
   # Linux/Cygwin-native toolchain 
   MKDEP = $(TOPDIR)/tools/mkdeps.sh
diff --git a/configs/zkit-arm-1769/hello/Make.defs b/configs/zkit-arm-1769/hello/Make.defs
index d30fe22f89..10830645e4 100644
--- a/configs/zkit-arm-1769/hello/Make.defs
+++ b/configs/zkit-arm-1769/hello/Make.defs
@@ -50,7 +50,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
   NXFLATLDSCRIPT = -T "${shell cygpath -w $(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld}"
 else
   # Linux/Cygwin-native toolchain
diff --git a/configs/zkit-arm-1769/nsh/Make.defs b/configs/zkit-arm-1769/nsh/Make.defs
index 32a8ff4294..92accf1a7c 100644
--- a/configs/zkit-arm-1769/nsh/Make.defs
+++ b/configs/zkit-arm-1769/nsh/Make.defs
@@ -50,7 +50,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
   NXFLATLDSCRIPT = -T "${shell cygpath -w $(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld}"
 else
   # Linux/Cygwin-native toolchain
diff --git a/configs/zkit-arm-1769/nxhello/Make.defs b/configs/zkit-arm-1769/nxhello/Make.defs
index 8b852e9b00..d91012e3ec 100644
--- a/configs/zkit-arm-1769/nxhello/Make.defs
+++ b/configs/zkit-arm-1769/nxhello/Make.defs
@@ -50,7 +50,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
   NXFLATLDSCRIPT = -T "${shell cygpath -w $(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld}"
 else
   # Linux/Cygwin-native toolchain
diff --git a/configs/zkit-arm-1769/thttpd/Make.defs b/configs/zkit-arm-1769/thttpd/Make.defs
index 8f7876d9f1..4cdf4f63dc 100644
--- a/configs/zkit-arm-1769/thttpd/Make.defs
+++ b/configs/zkit-arm-1769/thttpd/Make.defs
@@ -50,7 +50,6 @@ ifeq ($(WINTOOL),y)
   ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
   ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
   ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
-  MAXOPTIMIZATION = -O2
   NXFLATLDSCRIPT = -T "${shell cygpath -w $(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld}"
 else
   # Linux/Cygwin-native toolchain