OpenWrt – Rev 1

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cmake_bool = $(patsubst %,-D%:BOOL=$(if $($(1)),ON,OFF),$(2))

PKG_INSTALL:=1

ifneq ($(findstring c,$(OPENWRT_VERBOSE)),)
  MAKE_FLAGS+=VERBOSE=1
endif

CMAKE_BINARY_DIR = $(PKG_BUILD_DIR)$(if $(CMAKE_BINARY_SUBDIR),/$(CMAKE_BINARY_SUBDIR))
CMAKE_SOURCE_DIR = $(PKG_BUILD_DIR)$(if $(CMAKE_SOURCE_SUBDIR),/$(CMAKE_SOURCE_SUBDIR))
HOST_CMAKE_SOURCE_DIR = $(HOST_BUILD_DIR)$(if $(CMAKE_SOURCE_SUBDIR),/$(CMAKE_SOURCE_SUBDIR))
MAKE_PATH = $(firstword $(CMAKE_BINARY_SUBDIR) .)

ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
  cmake_tool=$(TOOLCHAIN_DIR)/bin/$(1)
else
  cmake_tool=$(shell which $(1))
endif

ifeq ($(CONFIG_CCACHE),)
 CMAKE_C_COMPILER:=$(call cmake_tool,$(TARGET_CC))
 CMAKE_CXX_COMPILER:=$(call cmake_tool,$(TARGET_CXX))
 CMAKE_C_COMPILER_ARG1:=
 CMAKE_CXX_COMPILER_ARG1:=
else
  CCACHE:=$(STAGING_DIR_HOST)/bin/ccache
  CMAKE_C_COMPILER:=$(CCACHE)
  CMAKE_C_COMPILER_ARG1:=$(TARGET_CC_NOCACHE)
  CMAKE_CXX_COMPILER:=$(CCACHE)
  CMAKE_CXX_COMPILER_ARG1:=$(TARGET_CXX_NOCACHE)
endif
CMAKE_AR:=$(call cmake_tool,$(TARGET_AR))
CMAKE_NM:=$(call cmake_tool,$(TARGET_NM))
CMAKE_RANLIB:=$(call cmake_tool,$(TARGET_RANLIB))

CMAKE_FIND_ROOT_PATH:=$(STAGING_DIR)/usr;$(TOOLCHAIN_DIR)$(if $(CONFIG_EXTERNAL_TOOLCHAIN),;$(CONFIG_TOOLCHAIN_ROOT))
CMAKE_HOST_FIND_ROOT_PATH:=$(STAGING_DIR)/host;$(STAGING_DIR_HOSTPKG);$(STAGING_DIR_HOST)
CMAKE_SHARED_LDFLAGS:=-Wl,-Bsymbolic-functions

define Build/Configure/Default
        mkdir -p $(CMAKE_BINARY_DIR)
        (cd $(CMAKE_BINARY_DIR); \
                CFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS)" \
                CXXFLAGS="$(TARGET_CXXFLAGS) $(EXTRA_CXXFLAGS)" \
                LDFLAGS="$(TARGET_LDFLAGS) $(EXTRA_LDFLAGS)" \
                cmake \
                        -DCMAKE_SYSTEM_NAME=Linux \
                        -DCMAKE_SYSTEM_VERSION=1 \
                        -DCMAKE_SYSTEM_PROCESSOR=$(ARCH) \
                        -DCMAKE_BUILD_TYPE=Release \
                        -DCMAKE_C_FLAGS_RELEASE="-DNDEBUG" \
                        -DCMAKE_CXX_FLAGS_RELEASE="-DNDEBUG" \
                        -DCMAKE_C_COMPILER="$(CMAKE_C_COMPILER)" \
                        -DCMAKE_C_COMPILER_ARG1="$(CMAKE_C_COMPILER_ARG1)" \
                        -DCMAKE_CXX_COMPILER="$(CMAKE_CXX_COMPILER)" \
                        -DCMAKE_CXX_COMPILER_ARG1="$(CMAKE_CXX_COMPILER_ARG1)" \
                        -DCMAKE_ASM_COMPILER="$(CMAKE_C_COMPILER)" \
                        -DCMAKE_ASM_COMPILER_ARG1="$(CMAKE_C_COMPILER_ARG1)" \
                        -DCMAKE_EXE_LINKER_FLAGS:STRING="$(TARGET_LDFLAGS)" \
                        -DCMAKE_MODULE_LINKER_FLAGS:STRING="$(TARGET_LDFLAGS) $(CMAKE_SHARED_LDFLAGS)" \
                        -DCMAKE_SHARED_LINKER_FLAGS:STRING="$(TARGET_LDFLAGS) $(CMAKE_SHARED_LDFLAGS)" \
                        -DCMAKE_AR="$(CMAKE_AR)" \
                        -DCMAKE_NM="$(CMAKE_NM)" \
                        -DCMAKE_RANLIB="$(CMAKE_RANLIB)" \
                        -DCMAKE_FIND_ROOT_PATH="$(CMAKE_FIND_ROOT_PATH)" \
                        -DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM=BOTH \
                        -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY=ONLY \
                        -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY \
                        -DCMAKE_STRIP=: \
                        -DCMAKE_INSTALL_PREFIX=/usr \
                        -DDL_LIBRARY=$(STAGING_DIR) \
                        -DCMAKE_PREFIX_PATH=$(STAGING_DIR) \
                        -DCMAKE_SKIP_RPATH=TRUE  \
                        $(CMAKE_OPTIONS) \
                $(CMAKE_SOURCE_DIR) \
        )
endef

define Build/InstallDev/cmake
        $(INSTALL_DIR) $(1)
        $(CP) $(PKG_INSTALL_DIR)/* $(1)/
endef

Build/InstallDev = $(if $(CMAKE_INSTALL),$(Build/InstallDev/cmake))

define Host/Configure/Default
        (cd $(HOST_BUILD_DIR); \
                CFLAGS="$(HOST_CFLAGS)" \
                CXXFLAGS="$(HOST_CFLAGS)" \
                LDFLAGS="$(HOST_LDFLAGS)" \
                cmake \
                        -DCMAKE_BUILD_TYPE=Release \
                        -DCMAKE_C_FLAGS_RELEASE="-DNDEBUG" \
                        -DCMAKE_CXX_FLAGS_RELEASE="-DNDEBUG" \
                        -DCMAKE_EXE_LINKER_FLAGS:STRING="$(HOST_LDFLAGS)" \
                        -DCMAKE_MODULE_LINKER_FLAGS:STRING="$(HOST_LDFLAGS)" \
                        -DCMAKE_SHARED_LINKER_FLAGS:STRING="$(HOST_LDFLAGS)" \
                        -DCMAKE_FIND_ROOT_PATH="$(CMAKE_HOST_FIND_ROOT_PATH)" \
                        -DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM=BOTH \
                        -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY=ONLY \
                        -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY \
                        -DCMAKE_STRIP=: \
                        -DCMAKE_INSTALL_PREFIX=$(HOST_BUILD_PREFIX) \
                        -DCMAKE_PREFIX_PATH=$(HOST_BUILD_PREFIX) \
                        -DCMAKE_SKIP_RPATH=TRUE  \
                        $(CMAKE_HOST_OPTIONS) \
                $(HOST_CMAKE_SOURCE_DIR) \
        )
endef

MAKE_FLAGS += \
        CMAKE_COMMAND='$$(if $$(CMAKE_DISABLE_$$@),:,$(STAGING_DIR_HOST)/bin/cmake)' \
        CMAKE_DISABLE_cmake_check_build_system=1