67 lines
2.1 KiB
CMake
67 lines
2.1 KiB
CMake
###############################################################################
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set(_LINK_FLAG_LIST_DIR ${CMAKE_CURRENT_LIST_DIR})
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macro(check_link_flag _variable _flag)
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string (MAKE_C_IDENTIFIER ${_flag} _name)
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if (NOT DEFINED __check_link_flag_${_name})
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message (STATUS "checking linker flag ${_flag}")
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set (__check_linker_flag_old "${CMAKE_EXE_LINKER_FLAGS}")
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set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${_flag}")
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try_compile (
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__check_link_flag_${_name}
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"${CMAKE_CURRENT_BINARY_DIR}/CMakeTmp"
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SOURCES
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"${_LINK_FLAG_LIST_DIR}/test_link_flag.cpp")
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if (__check_link_flag_${_name})
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message (STATUS "checking linker flag ${_flag} - found")
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else()
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message (STATUS "checking linker flag ${_flag} - not found")
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endif()
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set (CMAKE_EXE_LINKER_FLAGS "${__check_linker_flag_old}")
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endif ()
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set (${_variable} ${__check_link_flag_${_name}})
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endmacro()
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##-----------------------------------------------------------------------------
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macro(append_link_flag _flag)
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check_link_flag (__test_link_flag_${_flag} ${_flag})
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if (__test_link_flag_${_flag})
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set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${_flag}")
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endif()
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endmacro()
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##-----------------------------------------------------------------------------
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macro(append_first_link_flag)
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message(CHECK_START "First LDFLAG ${ARGV}")
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foreach(__append_first_link_flag__flag ${ARGV})
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set(__append_first_link_flag__test 0)
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check_link_flag(
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__append_first_link_flag__test
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${__append_first_link_flag__flag}
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)
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if (${append_first_link_flag__test})
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set (CMAKE_EXE_LINKER_FLAGS
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"${CMAKE_EXE_LINKER_FLAGS} ${__append_first_link_flag__flag}"
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)
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message(CHECK_PASS "Found ${__append_first_link_flag__flag}")
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break()
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endif()
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endforeach()
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if (NOT ${_append_first_link_flag__test})
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message(CHECK_FAIL "No valid flags")
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endif ()
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endmacro() |