--- a/third/pink/pink/Makefile
+++ b/third/pink/pink/Makefile
@@ -1,7 +1,5 @@
 CLEAN_FILES = # deliberately empty, so we can append below.
-CXX=g++
-LDFLAGS= -lpthread -lrt
-CXXFLAGS= -g -std=c++11 -fno-builtin-memcmp -msse -msse4.2 -pipe -fPIC
+CXXFLAGS+= -std=c++11 -fno-builtin-memcmp -pipe -fPIC $(CPPFLAGS)
 PROFILING_FLAGS=-pg
 ARFLAGS = rs
 OPT=
@@ -27,7 +25,7 @@ endif
 # don't treat warnings as errors
 ifeq ($(DEBUG_LEVEL),0)
 DISABLE_WARNING_AS_ERROR=1
-OPT += -O2 -fno-omit-frame-pointer -DNDEBUG
+OPT += -Oz -fno-omit-frame-pointer -DNDEBUG
 else
 $(warning Warning: Compiling in debug mode. Don't use the resulting binary in production)
 OPT += -O0 -D__XDEBUG__ $(PROFILING_FLAGS)