qt5base-lts/mkspecs/common/clang.conf
Thiago Macieira 0f569f5900 Clean up ltcg.prf with variables, including a new static mode
By using the special "ar" and "ranlib" tools, the symbol table is made
visible, so we don't need fat LTO binaries. Since we need to store the
new tool names, we may as well clean up ltcg.prf with variable names for
the fat mode too.

Change-Id: I7e53af0c74a3d069313f38500b72538af1d61128
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-01-11 03:41:48 +01:00

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#
# Qmake configuration for Clang on Linux, OS X and iOS
#
QMAKE_COMPILER = gcc clang llvm # clang pretends to be gcc
QMAKE_CC = clang
QMAKE_CXX = clang++
QMAKE_LINK_C = $$QMAKE_CC
QMAKE_LINK_C_SHLIB = $$QMAKE_CC
QMAKE_LINK = $$QMAKE_CXX
QMAKE_LINK_SHLIB = $$QMAKE_CXX
CONFIG += clang_pch_style
QMAKE_PCH_OUTPUT_EXT = .pch
QMAKE_CFLAGS_ISYSTEM = -isystem
QMAKE_CFLAGS_PRECOMPILE = -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
QMAKE_CFLAGS_USE_PRECOMPILE = -Xclang -include-pch -Xclang ${QMAKE_PCH_OUTPUT}
QMAKE_CFLAGS_LTCG = -flto
QMAKE_CXXFLAGS_PRECOMPILE = -x c++-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
QMAKE_CXXFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
QMAKE_CXXFLAGS_CXX11 = -std=c++11
QMAKE_LFLAGS_CXX11 =
QMAKE_LFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
# Wrapper tools that understand .o/.a files with LLVM bytecode instead of machine code
QMAKE_AR_LTCG = llvm-ar cqs
QMAKE_NM_LTCG = gcc-nm -P
QMAKE_RANLIB_LTCG = true # No need to run, since llvm-ar has "s"