Tom Stellard 6ece9abfcd Don't add unnecessary compiler flags to llvm-config output ... Summary: llvm-config --cxxflags --cflags, should only output the minimal flags required to link against the llvm libraries. They currently contain all flags used to compile llvm including flags like -g, -pedantic, -Wall, etc, which users may not always want. This changes the llvm-config output to only include flags that have been explictly added to the COMPILE_FLAGS property of the llvm-config target by the llvm build system. llvm.org/PR8220 Output from llvm-config when running cmake with: cmake -G Ninja .. -DCMAKE_CXX_FLAGS=-funroll-loops Before: --cppflags: -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS --cflags: -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include -fPIC -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings \ -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough \ -Wno-comment -fdiagnostics-color -g -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS \ -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS --cxxflags: -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include\ -funroll-loops -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -Wall \ -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers \ -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized \ -Wno-class-memaccess -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wno-comment \ -fdiagnostics-color -g -fno-exceptions -fno-rtti -D_GNU_SOURCE -D_DEBUG \ -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS" After: --cppflags: -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include \ -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS --cflags: -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include \ -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS --cxxflags: -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include \ -std=c++11 -fno-exceptions -fno-rtti \ -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS Reviewers: sylvestre.ledru, infinity0, mgorny Reviewed By: sylvestre.ledru, mgorny Subscribers: mgorny, dmgreen, llvm-commits Differential Revision: https://reviews.llvm.org/D55391 llvm-svn: 349068		2018-12-13 18:21:23 +00:00
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BuildVariables.inc.in
CMakeLists.txt	Don't add unnecessary compiler flags to llvm-config output	2018-12-13 18:21:23 +00:00
llvm-config.cpp