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Makefile: generate CMake toolchain-file in $(O)

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A CMake toolchain-file makes it easy to develop CMake-based packages
outside of Buildroot. Just give the toolchain-file to CMake via the
-DCMAKE_TOOLCHAIN_FILE=... option.

Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Bjørn Forsman
2011-01-26 22:18:42 +01:00
committed by Peter Korsgaard
parent 0fa46e59db
commit 73144a6e02
2 changed files with 24 additions and 1 deletions
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17
Makefile
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@@ -363,7 +363,7 @@ $(TARGETS_ALL): __real_tgt_%: $(BASE_TARGETS) %
dirs: $(DL_DIR) $(TOOLCHAIN_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
$(HOST_DIR) $(BR2_DEPENDS_DIR) $(BINARIES_DIR) $(STAMP_DIR)
$(BASE_TARGETS): dirs
$(BASE_TARGETS): dirs $(O)/toolchainfile.cmake
$(BUILD_DIR)/buildroot-config/auto.conf: $(CONFIG_DIR)/.config
$(MAKE) $(EXTRAMAKEARGS) silentoldconfig
@@ -372,6 +372,21 @@ prepare: $(BUILD_DIR)/buildroot-config/auto.conf
world: prepare dependencies dirs $(BASE_TARGETS) $(TARGETS_ALL)
$(O)/toolchainfile.cmake:
@echo -en "\
set(CMAKE_SYSTEM_NAME Linux)\n\
set(CMAKE_C_COMPILER $(CMAKE_TARGET_CC))\n\
set(CMAKE_CXX_COMPILER $(CMAKE_TARGET_CXX))\n\
set(CMAKE_C_FLAGS \"\$${CMAKE_C_FLAGS} $(CMAKE_TARGET_CFLAGS)\" CACHE STRING \"Buildroot CFLAGS\" FORCE)\n\
set(CMAKE_CXX_FLAGS \"\$${CMAKE_CXX_FLAGS} $(CMAKE_TARGET_CXXFLAGS)\" CACHE STRING \"Buildroot CXXFLAGS\" FORCE)\n\
set(CMAKE_INSTALL_SO_NO_EXE 0)\n\
set(CMAKE_PROGRAM_PATH \"$(HOST_DIR)/usr/bin\")\n\
set(CMAKE_FIND_ROOT_PATH \"$(STAGING_DIR)\")\n\
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)\n\
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)\n\
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)\n\
set(ENV{PKG_CONFIG_SYSROOT_DIR} \"$(STAGING_DIR)\")\n\
" > $@
.PHONY: all world dirs clean distclean source outputmakefile \
$(BASE_TARGETS) $(TARGETS) $(TARGETS_ALL) \