93 lines
3.1 KiB
CMake
93 lines
3.1 KiB
CMake
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# UseGCCBinUtilsWrappers.cmake
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#
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# Use gcc binutils wrappers such as gcc-ar, this may be necessary for LTO.
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#
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# To use:
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#
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# put a copy into your <project_root>/CMakeScripts/
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#
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# In your main CMakeLists.txt add the command:
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#
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# INCLUDE(UseGCCBinUtilsWrappers)
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#
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# BSD 2-Clause License
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#
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# Copyright (c) 2016, Rafael Kitover
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# only do this when compiling with gcc/g++
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IF(NOT (CMAKE_COMPILER_IS_GNUCXX OR CMAKE_COMPILER_IS_GNUC))
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RETURN()
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ENDIF()
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# first try appending -util to basename of compiler
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STRING(REGEX MATCH "\\.(exe|EXE)$" GCC_EXE_SUFFIX ${CMAKE_C_COMPILER})
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STRING(REGEX REPLACE "\\.(exe|EXE)$" "" GCC_BASENAME ${CMAKE_C_COMPILER})
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SET(GCC_AR "${GCC_BASENAME}-ar${GCC_EXE_SUFFIX}")
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SET(GCC_NM "${GCC_BASENAME}-nm${GCC_EXE_SUFFIX}")
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SET(GCC_RANLIB "${GCC_BASENAME}-ranlib${GCC_EXE_SUFFIX}")
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# if that does not work, try looking for gcc-util in the compiler directory,
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# and failing that in the PATH
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GET_FILENAME_COMPONENT(GCC_DIRNAME ${CMAKE_C_COMPILER} DIRECTORY)
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IF(NOT EXISTS ${GCC_AR})
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UNSET(GCC_AR)
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FIND_PROGRAM(GCC_AR NAMES gcc-ar gcc-ar.exe GCC-AR.EXE HINTS ${GCC_DIRNAME})
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ENDIF()
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IF(NOT EXISTS ${GCC_NM})
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UNSET(GCC_NM)
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FIND_PROGRAM(GCC_NM NAMES gcc-nm gcc-nm.exe GCC-NM.EXE HINTS ${GCC_DIRNAME})
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ENDIF()
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IF(NOT EXISTS ${GCC_RANLIB})
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UNSET(GCC_RANLIB)
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FIND_PROGRAM(GCC_RANLIB NAMES gcc-ranlib gcc-ranlib.exe GCC-RANLIB.EXE HINTS ${GCC_DIRNAME})
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ENDIF()
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IF(EXISTS ${GCC_AR})
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SET(CMAKE_AR ${GCC_AR})
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MESSAGE("-- Found gcc-ar: ${CMAKE_AR}")
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ENDIF()
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IF(EXISTS ${GCC_NM})
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SET(CMAKE_NM ${GCC_NM})
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MESSAGE("-- Found gcc-nm: ${CMAKE_NM}")
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ENDIF()
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IF(EXISTS ${GCC_RANLIB})
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SET(CMAKE_RANLIB ${GCC_RANLIB})
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MESSAGE("-- Found gcc-ranlib: ${CMAKE_RANLIB}")
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ENDIF()
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FOREACH(VAR "GCC_AR" "GCC_NM" "GCC_RANLIB" "GCC_DIRNAME" "GCC_BASENAME" "GCC_EXE_SUFFIX")
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UNSET(${VAR})
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ENDFOREACH()
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