c55c64e242
First abstraction completed for the toolchains: - gcc - clang Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
53 lines
1.7 KiB
CMake
53 lines
1.7 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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# Configures CMake for using GCC
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find_program(CMAKE_C_COMPILER gcc)
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if(CONFIG_CPLUSPLUS)
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set(cplusplus_compiler g++)
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else()
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if(EXISTS g++)
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set(cplusplus_compiler g++)
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else()
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# When the toolchain doesn't support C++, and we aren't building
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# with C++ support just set it to something so CMake doesn't
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# crash, it won't actually be called
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set(cplusplus_compiler ${CMAKE_C_COMPILER})
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endif()
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endif()
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find_program(CMAKE_CXX_COMPILER ${cplusplus_compiler} CACHE INTERNAL " " FORCE)
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# The x32 version of libgcc is usually not available (can't trust gcc
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# -mx32 --print-libgcc-file-name) so don't fail to build for something
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# that is currently not needed. See comments in compiler/gcc/target.cmake
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if (CONFIG_X86)
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# Convert to list as cmake Modules/*.cmake do it
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STRING(REGEX REPLACE " +" ";" PRINT_LIBGCC_ARGS "${CMAKE_C_FLAGS}")
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# This libgcc code is partially duplicated in compiler/*/target.cmake
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execute_process(
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COMMAND ${CMAKE_C_COMPILER} "${PRINT_LIBGCC_ARGS}" --print-libgcc-file-name
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OUTPUT_VARIABLE LIBGCC_FILE_NAME
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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assert_exists(LIBGCC_FILE_NAME)
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endif()
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set(NOSTDINC "")
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# Note that NOSYSDEF_CFLAG may be an empty string, and
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# set_ifndef() does not work with empty string.
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if(NOT DEFINED NOSYSDEF_CFLAG)
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set(NOSYSDEF_CFLAG -undef)
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endif()
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foreach(file_name include/stddef.h)
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execute_process(
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COMMAND ${CMAKE_C_COMPILER} --print-file-name=${file_name}
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OUTPUT_VARIABLE _OUTPUT
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)
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get_filename_component(_OUTPUT "${_OUTPUT}" DIRECTORY)
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string(REGEX REPLACE "\n" "" _OUTPUT "${_OUTPUT}")
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list(APPEND NOSTDINC ${_OUTPUT})
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endforeach()
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