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22 lines
928 B
CMake
22 lines
928 B
CMake
if(DEFINED TOOLCHAIN_ALREADY_RUN)
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return()
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endif()
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# Set the guard variable, because for some strange reason it's run twice if not set.
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set(TOOLCHAIN_ALREADY_RUN TRUE CACHE INTERNAL "Toolchain file has already been processed")
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if(CMAKE_C_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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message(FATAL_ERROR "This toolchain file does not support Clang. Please use GCC or another supported compiler.")
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endif()
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# Check if cross-compiling is being attempted
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if(CMAKE_CROSSCOMPILING)
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message(FATAL_ERROR "This toolchain file cannot be used for cross-compilation.")
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endif()
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# Run gcc to get the compilation details and remove unwanted flags after -dumpbase
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execute_process(
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COMMAND sh -c "gcc -### -E - -march=native -mtune=native -mcpu=native 2>&1 | sed -r '/cc1/!d; s/\"//g; s/^.* - //g; s/ -dumpbase.*//'"
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OUTPUT_VARIABLE CMAKE_C_FLAGS
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OUTPUT_STRIP_TRAILING_WHITESPACE
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) |