qt5base-lts/mkspecs/features/default_post.prf
Tor Arne Vestbø 9ff1310af5 Distinguish between Objective-C and Objective-C++ sources
Instead of lumping both Objective-C (.m) and Objective-C++ (.mm) sources
into the same pile, passing them on to the same compiler as for C++ (CXX),
with the C++ flags (CXXFLAGS), we follow Apple's lead and treat them as
variants of the C and C++ languages separately, so that Objective-C
sources are built with CC and with CFLAGS, and Objective-C++ sources
with CXX, and CXXFLAGS.

This lets us remove a lot of duplicated flags and definitions from the
QMAKE_OBJECTIVE_CFLAGS variable, which in 99% of the cases just matched
the C++ equivalent. The remaining Objective-C/C++ flags are added to
CFLAGS/CXXFLAGS, as the compiler will just ignore them when running in
C/C++ mode. This matches Xcode, which also doesn't have a separate build
setting for Objective-C/C++ flags.

The Makefile qmake generator has been rewritten to support Objective-C/C++
fully, by not assuming that we're just iterating over the C and C++
extensions when dealing with compilation rules, precompiled headers, etc.
There's some duplicated logic in this code, as inherent by qmake's already
duplicated code paths, but this can be cleaned up when C++11 support is
mandatory and we can use lambda functions.

Task-number: QTBUG-36575
Change-Id: I4f06576d5f49e939333a2e03d965da54119e5e31
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
2015-10-09 15:15:17 +00:00

116 lines
3.8 KiB
Plaintext

# This file is loaded by qmake right after loading the actual project file.
contains(TEMPLATE, ".*(lib|app)"):CONFIG += have_target
!have_target:!force_qt: CONFIG -= qt
load(resolve_config)
exclusive_builds: load(exclusive_builds_post)
# If the TARGET looks like a path, split it into DESTDIR and the resulting TARGET
target_dir_part = $$dirname(TARGET)
!isEmpty(target_dir_part) {
isEmpty(DESTDIR): \
DESTDIR = $$target_dir_part
else: \
DESTDIR = $$DESTDIR/$$target_dir_part
TARGET = $$basename(TARGET)
DESTDIR = $$clean_path($$DESTDIR)
}
QT_BREAKPAD_ROOT_PATH = $$(QT_BREAKPAD_ROOT_PATH)
!isEmpty(QT_BREAKPAD_ROOT_PATH): \ # quick test first whether requested ...
!static:release:have_target: \ # is it applicable?
!contains(TARGET, .*phony_target.*): \ # monster hack, you don't really see this here, right? ;)
system($$QT_BREAKPAD_ROOT_PATH/qtbreakpadsymbols --breakpad-exists) { # do we really have it?
CONFIG += breakpad force_debug_info
CONFIG -= no_debug_info separate_debug_info
}
force_debug_info|debug: \
CONFIG += debug_info
force_debug_info {
QMAKE_CFLAGS_RELEASE = $$QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO
QMAKE_CXXFLAGS_RELEASE = $$QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO
QMAKE_LFLAGS_RELEASE = $$QMAKE_LFLAGS_RELEASE_WITH_DEBUGINFO
}
optimize_full {
!isEmpty(QMAKE_CFLAGS_OPTIMIZE):!isEmpty(QMAKE_CFLAGS_OPTIMIZE_FULL) {
QMAKE_CFLAGS_RELEASE -= $$QMAKE_CFLAGS_OPTIMIZE
QMAKE_CXXFLAGS_RELEASE -= $$QMAKE_CFLAGS_OPTIMIZE
QMAKE_CFLAGS_RELEASE += $$QMAKE_CFLAGS_OPTIMIZE_FULL
QMAKE_CXXFLAGS_RELEASE += $$QMAKE_CFLAGS_OPTIMIZE_FULL
}
}
debug {
QMAKE_CFLAGS += $$QMAKE_CFLAGS_DEBUG
QMAKE_CXXFLAGS += $$QMAKE_CXXFLAGS_DEBUG
QMAKE_LFLAGS += $$QMAKE_LFLAGS_DEBUG
QMAKE_LIBFLAGS += $$QMAKE_LIBFLAGS_DEBUG
} else {
QMAKE_CFLAGS += $$QMAKE_CFLAGS_RELEASE
QMAKE_CXXFLAGS += $$QMAKE_CXXFLAGS_RELEASE
QMAKE_LFLAGS += $$QMAKE_LFLAGS_RELEASE
QMAKE_LIBFLAGS += $$QMAKE_LIBFLAGS_RELEASE
}
# disable special linker flags for host builds (no proper test for host support yet)
!host_build {
use_gold_linker: QMAKE_LFLAGS += $$QMAKE_LFLAGS_USE_GOLD
enable_new_dtags: QMAKE_LFLAGS += $$QMAKE_LFLAGS_NEW_DTAGS
}
dll:win32: QMAKE_LFLAGS += $$QMAKE_LFLAGS_DLL
static:mac: QMAKE_LFLAGS += $$QMAKE_LFLAGS_STATIC_LIB
staticlib:unix {
QMAKE_CFLAGS += $$QMAKE_CFLAGS_STATIC_LIB
QMAKE_CXXFLAGS += $$QMAKE_CXXFLAGS_STATIC_LIB
}
incredibuild_xge {
CONFIG -= incredibuild_xge
CONFIG = incredibuild_xge $$CONFIG
}
silent {
# Ensure that we process silent.prf last, as it will mangle QMAKE_CXX
# and friends in a way that some of the other features (sdk.prf and
# simd.prf eg) do not handle.
CONFIG -= silent
CONFIG = silent $$CONFIG
}
breakpad {
load(resolve_target)
DEBUGFILENAME = $$shell_quote($$system_path($$QMAKE_RESOLVED_TARGET))
PROJECTPATH = $$shell_quote($$system_path($$OUT_PWD))
!isEmpty(QMAKE_POST_LINK):QMAKE_POST_LINK = $$QMAKE_POST_LINK$$escape_expand(\\n\\t)
QMAKE_POST_LINK = $$QMAKE_POST_LINK$$quote($${QT_BREAKPAD_ROOT_PATH}$${QMAKE_DIR_SEP}qtbreakpadsymbols $$DEBUGFILENAME $$PROJECTPATH)
!isEmpty(QMAKE_STRIP):QMAKE_POST_LINK = $$QMAKE_POST_LINK$$escape_expand(\\n\\t)$$quote($$QMAKE_STRIP $$DEBUGFILENAME)
}
c++11|c++14|c++1z {
c++1z: cxxstd = CXX1Z
else: c++14: cxxstd = CXX14
else: cxxstd = CXX11
# Check if we should disable the GNU extensions or not
!strict_c++:!isEmpty(QMAKE_CXXFLAGS_GNU$$cxxstd): cxxstd = GNU$$cxxstd
QMAKE_CXXFLAGS += $$eval(QMAKE_CXXFLAGS_$$cxxstd)
QMAKE_LFLAGS += $$eval(QMAKE_LFLAGS_$$cxxstd)
unset(cxxstd)
}
!precompile_header: SOURCES += $$NO_PCH_SOURCES
QMAKE_INCDIR += $$QMAKE_INCDIR_POST
QMAKE_LIBDIR += $$QMAKE_LIBDIR_POST