qt5base-lts/mkspecs/common/clang.conf
Martin Storsjö 22e9ff9c16 mkspecs: Allow specifying a CROSS_COMPILE for mac/clang targets
This allows distinguishing between these tools and tools for the host,
when cross compiling.

While mac tools normally only are available on macOS, there are third
party efforts to port them to other platforms. In these cases, it
might be useful to use a prefix (either some sort of triplet prefix,
or an absolute path) to distinguish between the host build platform
compilers/tools and the ones for the cross target.

The use of this variable matches the one used in a lot of other
mkspecs, and shouldn't cause any issues for those who aren't setting
it.

Change-Id: Iaeba571d955ea79ed1249989fcc525eb1eaf1f5c
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2018-06-21 11:55:20 +00:00

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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 = $${CROSS_COMPILE}clang
QMAKE_CXX = $${CROSS_COMPILE}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_CFLAGS_DISABLE_LTCG = -fno-lto
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_DISABLE_LTCG = $$QMAKE_CFLAGS_DISABLE_LTCG
QMAKE_CXXFLAGS_CXX11 = -std=c++11
QMAKE_CXXFLAGS_CXX14 = -std=c++1y
QMAKE_CXXFLAGS_CXX1Z = -std=c++1z
QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++11
QMAKE_CXXFLAGS_GNUCXX14 = -std=gnu++1y
QMAKE_CXXFLAGS_GNUCXX1Z = -std=gnu++1z
QMAKE_LFLAGS_CXX11 =
QMAKE_LFLAGS_CXX14 =
QMAKE_LFLAGS_CXX1Z =
QMAKE_LFLAGS_LTCG = $$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 = llvm-nm -P
QMAKE_RANLIB_LTCG = true # No need to run, since llvm-ar has "s"