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Check whether -Wno-unused-but-set-variable is supported before using
it. It seems to only be available on recent (>=4.6) versions of gcc.
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318a730c45
@ -209,6 +209,8 @@ endif(BUILD_SERVER)
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# Set some optimizations and tweaks
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#
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include(CheckCCompilerFlag)
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if(MSVC)
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# Visual Studio
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@ -236,7 +238,10 @@ else()
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endif()
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if(NOT APPLE)
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set(WARNING_FLAGS "${WARNING_FLAGS} -Wno-unused-but-set-variable")
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check_c_compiler_flag("-Wno-unused-but-set-variable" HAS_UNUSED_BUT_SET_VARIABLE_WARNING)
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if(HAS_UNUSED_BUT_SET_VARIABLE_WARNING)
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set(WARNING_FLAGS "${WARNING_FLAGS} -Wno-unused-but-set-variable")
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endif(HAS_UNUSED_BUT_SET_VARIABLE_WARNING)
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endif()
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if(APPLE)
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