reactos/toolchain-gcc.cmake
William Kent 3464df8c28
[CMAKE] Search the PATH for the compilers and cache the results
We are deliberately using a macro here instead of REQUIRED parameter
because it is available only in CMake 3.18+, so it won't work with
CMake version that is being shipped with RosBE.

On my dev box the RosBE tools are only in the PATH when needed.
Since my IDE inherits the PATH from the system and not from my shell,
I needed to be able to run configure.sh with the tools in my PATH
and then be able to successfully reconfigure when building
from a "regular" command prompt.
2022-05-25 16:34:16 +03:00

68 lines
2.8 KiB
CMake

macro(require_program varname execname)
find_program(${varname} ${execname})
if(NOT ${varname})
message(FATAL_ERROR "${execname} not found")
endif()
endmacro()
# pass variables necessary for the toolchain (needed for try_compile)
set(CMAKE_TRY_COMPILE_PLATFORM_VARIABLES ARCH)
# Choose the right MinGW toolchain prefix
if(NOT DEFINED MINGW_TOOLCHAIN_PREFIX)
if(ARCH STREQUAL "i386")
if(CMAKE_HOST_WIN32)
set(MINGW_TOOLCHAIN_PREFIX "" CACHE STRING "MinGW Toolchain Prefix")
else()
set(MINGW_TOOLCHAIN_PREFIX "i686-w64-mingw32-" CACHE STRING "MinGW-W64 Toolchain Prefix")
endif()
elseif(ARCH STREQUAL "amd64")
set(MINGW_TOOLCHAIN_PREFIX "x86_64-w64-mingw32-" CACHE STRING "MinGW Toolchain Prefix")
elseif(ARCH STREQUAL "arm")
set(MINGW_TOOLCHAIN_PREFIX "arm-mingw32ce-" CACHE STRING "MinGW Toolchain Prefix")
endif()
endif()
if(NOT DEFINED MINGW_TOOLCHAIN_SUFFIX)
set(MINGW_TOOLCHAIN_SUFFIX "" CACHE STRING "MinGW Toolchain Suffix")
endif()
# The name of the target operating system
set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_SYSTEM_PROCESSOR i686)
# Which tools to use
require_program(CMAKE_C_COMPILER ${MINGW_TOOLCHAIN_PREFIX}gcc${MINGW_TOOLCHAIN_SUFFIX})
require_program(CMAKE_CXX_COMPILER ${MINGW_TOOLCHAIN_PREFIX}g++${MINGW_TOOLCHAIN_SUFFIX})
require_program(CMAKE_ASM_COMPILER ${MINGW_TOOLCHAIN_PREFIX}gcc${MINGW_TOOLCHAIN_SUFFIX})
set(CMAKE_ASM_COMPILER_ID "GNU")
require_program(CMAKE_MC_COMPILER ${MINGW_TOOLCHAIN_PREFIX}windmc)
require_program(CMAKE_RC_COMPILER ${MINGW_TOOLCHAIN_PREFIX}windres)
require_program(CMAKE_DLLTOOL ${MINGW_TOOLCHAIN_PREFIX}dlltool)
#set(CMAKE_AR ${MINGW_TOOLCHAIN_PREFIX}gcc-ar${MINGW_TOOLCHAIN_SUFFIX})
require_program(CMAKE_OBJCOPY ${MINGW_TOOLCHAIN_PREFIX}objcopy)
set(CMAKE_C_CREATE_STATIC_LIBRARY "<CMAKE_AR> crT <TARGET> <LINK_FLAGS> <OBJECTS>")
set(CMAKE_CXX_CREATE_STATIC_LIBRARY ${CMAKE_C_CREATE_STATIC_LIBRARY})
set(CMAKE_ASM_CREATE_STATIC_LIBRARY ${CMAKE_C_CREATE_STATIC_LIBRARY})
# Don't link with anything by default unless we say so
set(CMAKE_C_STANDARD_LIBRARIES "-lgcc" CACHE STRING "Standard C Libraries")
#MARK_AS_ADVANCED(CLEAR CMAKE_CXX_STANDARD_LIBRARIES)
set(CMAKE_CXX_STANDARD_LIBRARIES "-lgcc" CACHE STRING "Standard C++ Libraries")
# This allows to have CMake test the compiler without linking
set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
set(CMAKE_SHARED_LINKER_FLAGS_INIT "-nostdlib -Wl,--enable-auto-image-base,--disable-auto-import")
set(CMAKE_MODULE_LINKER_FLAGS_INIT "-nostdlib -Wl,--enable-auto-image-base,--disable-auto-import")
set(CMAKE_EXE_LINKER_FLAGS_INIT "-nostdlib -Wl,--enable-auto-image-base,--disable-auto-import")
set(CMAKE_USER_MAKE_RULES_OVERRIDE "${CMAKE_CURRENT_LIST_DIR}/overrides-gcc.cmake")
# Get GCC version
execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)