b678445901
Due to common subexpression elimination instruction set extensions may leak from the objects where they were enabled when doing link-time optimizations. To avoid that this patch disables LTCG/LTO on files built with extra instruction set extensions. Change-Id: Ie34ad900be7fb04a0dc4d3562187ee170c183333 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
38 lines
1.3 KiB
Plaintext
38 lines
1.3 KiB
Plaintext
#
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# Qmake configuration for Clang on Linux, OS X and iOS
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#
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QMAKE_COMPILER = gcc clang llvm # clang pretends to be gcc
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QMAKE_CC = clang
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QMAKE_CXX = clang++
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QMAKE_LINK_C = $$QMAKE_CC
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QMAKE_LINK_C_SHLIB = $$QMAKE_CC
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QMAKE_LINK = $$QMAKE_CXX
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QMAKE_LINK_SHLIB = $$QMAKE_CXX
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CONFIG += clang_pch_style
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QMAKE_PCH_OUTPUT_EXT = .pch
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QMAKE_CFLAGS_ISYSTEM = -isystem
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QMAKE_CFLAGS_PRECOMPILE = -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
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QMAKE_CFLAGS_USE_PRECOMPILE = -Xclang -include-pch -Xclang ${QMAKE_PCH_OUTPUT}
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QMAKE_CFLAGS_LTCG = -flto
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QMAKE_CFLAGS_DISABLE_LTCG = -fno-lto
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QMAKE_CXXFLAGS_PRECOMPILE = -x c++-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
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QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
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QMAKE_CXXFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
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QMAKE_CXXFLAGS_DISABLE_LTCG = $$QMAKE_CFLAGS_DISABLE_LTCG
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QMAKE_CXXFLAGS_CXX11 = -std=c++11
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QMAKE_LFLAGS_CXX11 =
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QMAKE_LFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
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# Wrapper tools that understand .o/.a files with LLVM bytecode instead of machine code
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QMAKE_AR_LTCG = llvm-ar cqs
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QMAKE_NM_LTCG = gcc-nm -P
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QMAKE_RANLIB_LTCG = true # No need to run, since llvm-ar has "s"
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