nuttx/Makefile.unix

591 lines
20 KiB
Makefile

############################################################################
# Makefile.unix
#
# Copyright (C) 2007-2012, 2014-2015 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
TOPDIR := ${shell pwd | sed -e 's/ /\\ /g'}
-include $(TOPDIR)/.config
include $(TOPDIR)/tools/Config.mk
-include $(TOPDIR)/Make.defs
# Control build verbosity
#
# V=1,2: Enable echo of commands
# V=2: Enable bug/verbose options in tools and scripts
ifeq ($(V),1)
export Q :=
else
ifeq ($(V),2)
export Q :=
else
export Q := @
endif
endif
# Default tools
ifeq ($(DIRLINK),)
DIRLINK = $(TOPDIR)/tools/link.sh
DIRUNLINK = $(TOPDIR)/tools/unlink.sh
endif
# This define is passed as EXTRADEFINES for kernel-mode builds. It is also passed
# during PASS1 (but not PASS2) context and depend targets.
KDEFINE = ${shell $(TOPDIR)/tools/define.sh "$(CC)" __KERNEL__}
# Process architecture and board-specific directories
ARCH_DIR = arch/$(CONFIG_ARCH)
ARCH_SRC = $(ARCH_DIR)/src
ARCH_INC = $(ARCH_DIR)/include
ifeq ($(CONFIG_ARCH_BOARD_CUSTOM),y)
ifeq ($(CONFIG_ARCH_BOARD_CUSTOM_DIR_RELPATH),y)
BOARD_DIR = $(TOPDIR)$(DELIM)$(CONFIG_ARCH_BOARD_CUSTOM_DIR)
else
BOARD_DIR = $(CONFIG_ARCH_BOARD_CUSTOM_DIR)
endif
else
BOARD_DIR = $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)
endif
# CONFIG_APPS_DIR can be over-ridden from the command line or in the .config file.
# The default value of CONFIG_APPS_DIR is ../apps. Ultimately, the application
# will be built if APPDIR is defined. APPDIR will be defined if a directory containing
# a Makefile is found at the path provided by CONFIG_APPS_DIR
ifeq ($(CONFIG_APPS_DIR),)
CONFIG_APPS_DIR = ../apps
endif
APPDIR := ${shell if [ -r $(CONFIG_APPS_DIR)/Makefile ]; then echo "$(CONFIG_APPS_DIR)"; fi}
# Add-on directories. These may or may not be in place in the
# NuttX source tree (they must be specifically installed)
#
# NUTTX_ADDONS is the list of directories built into the NuttX kernel.
# USER_ADDONS is the list of directories that will be built into the user
# application
#
# FSDIRS depend on file descriptor support; NONFSDIRS do not (except for parts
# of FSDIRS). We will exclude FSDIRS from the build if file descriptor
# support is disabled
# CONTEXTDIRS include directories that have special, one-time pre-build
# requirements. Normally this includes things like auto-generation of
# configuration specific files or creation of configurable symbolic links
# USERDIRS - When NuttX is build is a monolithic kernel, this provides the
# list of directories that must be built
# OTHERDIRS - These are directories that are not built but probably should
# be cleaned to prevent garbage from collecting in them when changing
# configurations.
#
# CLEANDIRS are the directories that will clean in. These are
# all directories that we know about.
# KERNDEPDIRS are the directories in which we will build target dependencies.
# If NuttX and applications are built separately (CONFIG_BUILD_PROTECTED or
# CONFIG_BUILD_KERNEL), then this holds only the directories containing
# kernel files.
# USERDEPDIRS. If NuttX and applications are built separately (CONFIG_BUILD_PROTECTED),
# then this holds only the directories containing user files. If
# CONFIG_BUILD_KERNEL is selected, then applications are not build at all.
include Directories.mk
#
# Extra objects used in the final link.
#
# Pass 1 1ncremental (relative) link objects should be put into the
# processor-specific source directory (where other link objects will
# be created). If the pass1 object is an archive, it could go anywhere.
ifeq ($(CONFIG_BUILD_2PASS),y)
EXTRA_OBJS += $(CONFIG_PASS1_OBJECT)
endif
# Library build selections
#
# NUTTXLIBS is the list of NuttX libraries that is passed to the
# processor-specific Makefile to build the final NuttX target.
# Libraries in FSDIRS are excluded if file descriptor support
# is disabled.
# USERLIBS is the list of libraries used to build the final user-space
# application
# EXPORTLIBS is the list of libraries that should be exported by
# 'make export' is
ifeq ($(CONFIG_BUILD_PROTECTED),y)
include ProtectedLibs.mk
else
ifeq ($(CONFIG_BUILD_KERNEL),y)
include KernelLibs.mk
else
include FlatLibs.mk
endif
endif
# LINKLIBS derives from NUTTXLIBS and is simply the same list with the
# subdirectory removed
LINKLIBS = $(patsubst lib/%,%,$(NUTTXLIBS))
# Export tool definitions
MKEXPORT= tools/mkexport.sh
MKEXPORT_ARGS = -w$(WINTOOL) -t "$(TOPDIR)"
ifeq ($(CONFIG_BUILD_PROTECTED),y)
MKEXPORT_ARGS += -u
else
ifeq ($(CONFIG_BUILD_KERNEL),y)
MKEXPORT_ARGS += -u
endif
endif
ifeq ($(V),2)
MKEXPORT_ARGS += -d
endif
# This is the name of the final target (relative to the top level directorty)
BIN = nuttx$(EXEEXT)
all: $(BIN)
.PHONY: context clean_context check_context export subdir_clean clean subdir_distclean distclean apps_clean apps_distclean
# Target used to copy include/nuttx/math.h. If CONFIG_ARCH_MATH_H is
# defined, then there is an architecture specific math.h header file
# that will be included indirectly from include/math.h. But first, we
# have to copy math.h from include/nuttx/. to include/. Logic within
# include/nuttx/math.h will hand the redirection to the architecture-
# specific math.h header file.
#
# If the CONFIG_LIBM is defined, the Rhombus libm will be built at libc/math.
# Definitions and prototypes for the Rhombus libm are also contained in
# include/nuttx/math.h and so the file must also be copied in that case.
#
# If neither CONFIG_ARCH_MATH_H nor CONFIG_LIBM is defined, then no math.h
# header file will be provided. You would want that behavior if (1) you
# don't use libm, or (2) you want to use the math.h and libm provided
# within your toolchain.
ifeq ($(CONFIG_ARCH_MATH_H),y)
NEED_MATH_H = y
else
ifeq ($(CONFIG_LIBM),y)
NEED_MATH_H = y
endif
endif
ifeq ($(NEED_MATH_H),y)
include/math.h: include/nuttx/math.h
$(Q) cp -f include/nuttx/math.h include/math.h
else
include/math.h:
endif
# The float.h header file defines the properties of your floating point
# implementation. It would always be best to use your toolchain's float.h
# header file but if none is available, a default float.h header file will
# provided if this option is selected. However there is no assurance that
# the settings in this float.h are actually correct for your platform!
ifeq ($(CONFIG_ARCH_FLOAT_H),y)
include/float.h: include/nuttx/float.h
$(Q) cp -f include/nuttx/float.h include/float.h
else
include/float.h:
endif
# Target used to copy include/nuttx/stdarg.h. If CONFIG_ARCH_STDARG_H is
# defined, then there is an architecture specific stdarg.h header file
# that will be included indirectly from include/stdarg.h. But first, we
# have to copy stdarg.h from include/nuttx/. to include/.
ifeq ($(CONFIG_ARCH_STDARG_H),y)
include/stdarg.h: include/nuttx/stdarg.h
$(Q) cp -f include/nuttx/stdarg.h include/stdarg.h
else
include/stdarg.h:
endif
# Targets used to build include/nuttx/version.h. Creation of version.h is
# part of the overall NuttX configuration sequence. Notice that the
# tools/mkversion tool is built and used to create include/nuttx/version.h
tools/mkversion$(HOSTEXEEXT):
$(Q) $(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)" mkversion$(HOSTEXEEXT)
$(TOPDIR)/.version:
$(Q) if [ ! -f .version ]; then \
echo "No .version file found, creating one"; \
tools/version.sh -v 0.0 -b 0 .version; \
chmod 755 .version; \
fi
include/nuttx/version.h: $(TOPDIR)/.version tools/mkversion$(HOSTEXEEXT)
$(Q) tools/mkversion $(TOPDIR) > include/nuttx/version.h
# Targets used to build include/nuttx/config.h. Creation of config.h is
# part of the overall NuttX configuration sequence. Notice that the
# tools/mkconfig tool is built and used to create include/nuttx/config.h
tools/mkconfig$(HOSTEXEEXT):
$(Q) $(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)" mkconfig$(HOSTEXEEXT)
include/nuttx/config.h: $(TOPDIR)/.config tools/mkconfig$(HOSTEXEEXT)
$(Q) tools/mkconfig $(TOPDIR) > include/nuttx/config.h
# Targets used to create dependencies
tools/mkdeps$(HOSTEXEEXT):
$(Q) $(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)" mkdeps$(HOSTEXEEXT)
tools/cnvwindeps$(HOSTEXEEXT):
$(Q) $(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)" cnvwindeps$(HOSTEXEEXT)
# dirlinks, and helpers
#
# Directories links. Most of establishing the NuttX configuration involves
# setting up symbolic links with 'generic' directory names to specific,
# configured directories.
#
# Link the arch/<arch-name>/include directory to include/arch
include/arch: Make.defs
@echo "LN: include/arch to $(ARCH_DIR)/include"
$(Q) $(DIRLINK) $(TOPDIR)/$(ARCH_DIR)/include include/arch
# Link the configs/<board-name>/include directory to include/arch/board
include/arch/board: include/arch Make.defs include/arch
@echo "LN: include/arch/board to $(BOARD_DIR)/include"
$(Q) $(DIRLINK) $(BOARD_DIR)/include include/arch/board
# Link the configs/<board-name>/src dir to arch/<arch-name>/src/board
$(ARCH_SRC)/board: Make.defs
@echo "LN: $(ARCH_SRC)/board to $(BOARD_DIR)/src"
$(Q) $(DIRLINK) $(BOARD_DIR)/src $(ARCH_SRC)/board
# Link arch/<arch-name>/include/<chip-name> to arch/<arch-name>/include/chip
$(ARCH_SRC)/chip: Make.defs
ifneq ($(CONFIG_ARCH_CHIP),)
@echo "LN: $(ARCH_SRC)/chip to $(ARCH_SRC)/$(CONFIG_ARCH_CHIP)"
$(Q) $(DIRLINK) $(TOPDIR)/$(ARCH_SRC)/$(CONFIG_ARCH_CHIP) $(ARCH_SRC)/chip
endif
# Link arch/<arch-name>/src/<chip-name> to arch/<arch-name>/src/chip
include/arch/chip: include/arch Make.defs
ifneq ($(CONFIG_ARCH_CHIP),)
@echo "LN: include/arch/chip to $(ARCH_INC)/$(CONFIG_ARCH_CHIP)"
$(Q) $(DIRLINK) $(TOPDIR)/$(ARCH_INC)/$(CONFIG_ARCH_CHIP) include/arch/chip
endif
dirlinks: include/arch include/arch/board include/arch/chip $(ARCH_SRC)/board $(ARCH_SRC)/chip
# context
#
# The context target is invoked on each target build to assure that NuttX is
# properly configured. The basic configuration steps include creation of the
# the config.h and version.h header files in the include/nuttx directory and
# the establishment of symbolic links to configured directories.
context: check_context include/nuttx/config.h include/nuttx/version.h include/math.h include/float.h include/stdarg.h dirlinks
$(Q) for dir in $(CONTEXTDIRS) ; do \
$(MAKE) -C $$dir TOPDIR="$(TOPDIR)" context; \
done
# clean_context
#
# This is part of the distclean target. It removes all of the header files
# and symbolic links created by the context target.
clean_context:
$(Q) $(MAKE) -C configs TOPDIR="$(TOPDIR)" clean_context
$(call DELFILE, include/nuttx/config.h)
$(call DELFILE, include/nuttx/version.h)
$(call DELFILE, include/math.h)
$(call DELFILE, include/stdarg.h)
$(Q) $(DIRUNLINK) include/arch/board
$(Q) $(DIRUNLINK) include/arch/chip
$(Q) $(DIRUNLINK) include/arch
$(Q) $(DIRUNLINK) $(ARCH_SRC)/board
$(Q) $(DIRUNLINK) $(ARCH_SRC)/chip
# check_context
#
# This target checks if NuttX has been configured. NuttX is configured using
# the script tools/configure.sh. That script will install certain files in
# the top-level NuttX build directory. This target verifies that those
# configuration files have been installed and that NuttX is ready to be built.
check_context:
$(Q) if [ ! -e ${TOPDIR}/.config -o ! -e ${TOPDIR}/Make.defs ]; then \
echo "" ; echo "Nuttx has not been configured:" ; \
echo " cd tools; ./configure.sh <target>" ; echo "" ; \
exit 1 ; \
fi
# Archive targets. The target build sequence will first create a series of
# libraries, one per configured source file directory. The final NuttX
# execution will then be built from those libraries. The following targets
# build those libraries.
include LibTargets.mk
# pass1 and pass2
#
# If the 2 pass build option is selected, then this pass1 target is
# configured to built before the pass2 target. This pass1 target may, as an
# example, build an extra link object (CONFIG_PASS1_OBJECT) which may be an
# incremental (relative) link object, but could be a static library (archive);
# some modification to this Makefile would be required if CONFIG_PASS1_OBJECT
# is an archive. Exactly what is performed during pass1 or what it generates
# is unknown to this makefile unless CONFIG_PASS1_OBJECT is defined.
pass1deps: pass1dep $(USERLIBS)
pass1: pass1deps
ifeq ($(CONFIG_BUILD_2PASS),y)
$(Q) if [ -z "$(CONFIG_PASS1_BUILDIR)" ]; then \
echo "ERROR: CONFIG_PASS1_BUILDIR not defined"; \
exit 1; \
fi
$(Q) if [ ! -d "$(CONFIG_PASS1_BUILDIR)" ]; then \
echo "ERROR: CONFIG_PASS1_BUILDIR does not exist"; \
exit 1; \
fi
$(Q) if [ ! -f "$(CONFIG_PASS1_BUILDIR)/Makefile" ]; then \
echo "ERROR: No Makefile in CONFIG_PASS1_BUILDIR"; \
exit 1; \
fi
$(Q) $(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" LINKLIBS="$(LINKLIBS)" USERLIBS="$(USERLIBS)" "$(CONFIG_PASS1_TARGET)"
endif
pass2deps: pass2dep $(NUTTXLIBS)
pass2: pass2deps
$(Q) $(MAKE) -C $(ARCH_SRC) TOPDIR="$(TOPDIR)" EXTRA_OBJS="$(EXTRA_OBJS)" LINKLIBS="$(LINKLIBS)" EXTRADEFINES=$(KDEFINE) $(BIN)
$(Q) if [ -w /tftpboot ] ; then \
cp -f $(BIN) /tftpboot/$(BIN).${CONFIG_ARCH}; \
fi
ifeq ($(CONFIG_RRLOAD_BINARY),y)
@echo "MK: $(BIN).rr"
$(Q) $(TOPDIR)/tools/mkimage.sh --Prefix $(CROSSDEV) $(BIN) $(BIN).rr
$(Q) if [ -w /tftpboot ] ; then \
cp -f $(BIN).rr /tftpboot/$(BIN).rr.$(CONFIG_ARCH); \
fi
endif
ifeq ($(CONFIG_INTELHEX_BINARY),y)
@echo "CP: $(BIN).hex"
$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O ihex $(BIN) $(BIN).hex
endif
ifeq ($(CONFIG_MOTOROLA_SREC),y)
@echo "CP: $(BIN).srec"
$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O srec $(BIN) $(BIN).srec
endif
ifeq ($(CONFIG_RAW_BINARY),y)
@echo "CP: $(BIN).bin"
$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O binary $(BIN) $(BIN).bin
endif
ifeq ($(CONFIG_UBOOT_UIMAGE),y)
@echo "MKIMAGE: uImage"
$(Q) mkimage -A arm -O linux -C none -T kernel -a $(CONFIG_UIMAGE_LOAD_ADDRESS) \
-e $(CONFIG_UIMAGE_ENTRY_POINT) -n $(BIN) -d $(BIN).bin uImage
$(Q) if [ -w /tftpboot ] ; then \
cp -f uImage /tftpboot/uImage; \
fi
endif
# $(BIN)
#
# Create the final NuttX executable in a two pass build process. In the
# normal case, all pass1 and pass2 dependencies are created then pass1
# and pass2 targets are built. However, in some cases, you may need to build
# pass1 dependencies and pass1 first, then build pass2 dependencies and pass2.
# in that case, execute 'make pass1 pass2' from the command line.
$(BIN): pass1deps pass2deps pass1 pass2
# download
#
# This is a helper target that will rebuild NuttX and download it to the target
# system in one step. The operation of this target depends completely upon
# implementation of the DOWNLOAD command in the user Make.defs file. It will
# generate an error an error if the DOWNLOAD command is not defined.
download: $(BIN)
$(call DOWNLOAD, $<)
# pass1dep: Create pass1 build dependencies
# pass2dep: Create pass2 build dependencies
pass1dep: context tools/mkdeps$(HOSTEXEEXT) tools/cnvwindeps$(HOSTEXEEXT)
$(Q) for dir in $(USERDEPDIRS) ; do \
$(MAKE) -C $$dir TOPDIR="$(TOPDIR)" depend ; \
done
pass2dep: context tools/mkdeps$(HOSTEXEEXT) tools/cnvwindeps$(HOSTEXEEXT)
$(Q) for dir in $(KERNDEPDIRS) ; do \
$(MAKE) -C $$dir TOPDIR="$(TOPDIR)" EXTRADEFINES=$(KDEFINE) depend; \
done
# Configuration targets
#
# These targets depend on the kconfig-frontends packages. To use these, you
# must first download and install the kconfig-frontends package from this
# location: http://ymorin.is-a-geek.org/projects/kconfig-frontends. See
# README.txt file in the NuttX tools GIT repository for additional information.
do_config: context apps_preconfig
$(Q) APPSDIR=${CONFIG_APPS_DIR} kconfig-conf Kconfig
config: do_config clean_context
do_oldconfig: context apps_preconfig
$(Q) APPSDIR=${CONFIG_APPS_DIR} kconfig-conf --oldconfig Kconfig
oldconfig: do_oldconfig clean_context
do_olddefconfig: context apps_preconfig
$(Q) APPSDIR=${CONFIG_APPS_DIR} kconfig-conf --olddefconfig Kconfig
olddefconfig: do_olddefconfig clean_context
do_menuconfig: context apps_preconfig
$(Q) APPSDIR=${CONFIG_APPS_DIR} kconfig-mconf Kconfig
menuconfig: do_menuconfig clean_context
do_qconfig: context apps_preconfig
$(Q) APPSDIR=${CONFIG_APPS_DIR} kconfig-qconf Kconfig
qconfig: do_qconfig clean_context
gconfig: context apps_preconfig
$(Q) APPSDIR=${CONFIG_APPS_DIR} kconfig-gconf Kconfig
gconfig: do_gconfig clean_context
# export
#
# The export target will package the NuttX libraries and header files into
# an exportable package. Caveats: (1) These needs some extension for the KERNEL
# build; it needs to receive USERLIBS and create a libuser.a). (2) The logic
# in tools/mkexport.sh only supports GCC and, for example, explicitly assumes
# that the archiver is 'ar'
export: pass2deps
$(Q) MAKE=${MAKE} $(MKEXPORT) $(MKEXPORT_ARGS) -l "$(EXPORTLIBS)"
# General housekeeping targets: dependencies, cleaning, etc.
#
# depend: Create both PASS1 and PASS2 dependencies
# clean: Removes derived object files, archives, executables, and
# temporary files, but retains the configuration and context
# files and directories.
# distclean: Does 'clean' then also removes all configuration and context
# files. This essentially restores the directory structure
# to its original, unconfigured stated.
depend: pass1dep pass2dep
subdir_clean:
$(Q) for dir in $(CLEANDIRS) ; do \
if [ -e $$dir/Makefile ]; then \
$(MAKE) -C $$dir TOPDIR="$(TOPDIR)" clean ; \
fi \
done
$(Q) $(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)" clean
ifeq ($(CONFIG_BUILD_2PASS),y)
$(Q) $(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" clean
endif
clean: subdir_clean
$(call DELFILE, $(BIN))
$(call DELFILE, nuttx.*)
$(call DELFILE, *.map)
$(call DELFILE, _SAVED_APPS_config)
$(call DELFILE, nuttx-export*)
$(call DELFILE, nuttx_user*)
$(call CLEAN)
subdir_distclean:
$(Q) for dir in $(CLEANDIRS) ; do \
if [ -e $$dir/Makefile ]; then \
$(MAKE) -C $$dir TOPDIR="$(TOPDIR)" distclean ; \
fi \
done
distclean: clean subdir_distclean clean_context
ifeq ($(CONFIG_BUILD_2PASS),y)
$(Q) $(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" distclean
endif
$(call DELFILE, Make.defs)
$(call DELFILE, setenv.sh)
$(call DELFILE, setenv.bat)
$(call DELFILE, .config)
$(call DELFILE, .config.old)
# Application housekeeping targets. The APPDIR variable refers to the user
# application directory. A sample apps/ directory is included with NuttX,
# however, this is not treated as part of NuttX and may be replaced with a
# different application directory. For the most part, the application
# directory is treated like any other build directory in this script. However,
# as a convenience, the following targets are included to support housekeeping
# functions in the user application directory from the NuttX build directory.
#
# apps_preconfig: Prepare applications to be configured
# apps_clean: Perform the clean operation only in the user application
# directory
# apps_distclean: Perform the distclean operation only in the user application
# directory.
apps_preconfig:
ifneq ($(APPDIR),)
$(Q) $(MAKE) -C "$(TOPDIR)/$(APPDIR)" TOPDIR="$(TOPDIR)" preconfig
endif
apps_clean:
ifneq ($(APPDIR),)
$(Q) $(MAKE) -C "$(TOPDIR)/$(APPDIR)" TOPDIR="$(TOPDIR)" clean
endif
apps_distclean:
ifneq ($(APPDIR),)
$(Q) $(MAKE) -C "$(TOPDIR)/$(APPDIR)" TOPDIR="$(TOPDIR)" distclean
endif