The linker must not throw away the lto.o file. We now instruct the
linker to create a non-temporary lto.o, dependent on the target name.
In order to do that we introduce a new mkspec variable
QMAKE_LFLAGS_LTCG_SEPARATE_DEBUG_INFO. This variable can contain
single-$ variable references that get evaluated when loading ltcg.prf.
Fixes: QTBUG-72846
Change-Id: I0ea882628d63e5406ba0ee68c7435af597364b0f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
llvm-ar is not shipped as part of Xcode. Use libtool instead, just like
Xcode does.
Change-Id: Ic9c5e16c826c0d42979556f78d2cf6415542ef93
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
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>
Since libstdc++ builds on OS X and QNX 6.5 are no longer supported,
simply require <initializer_list> and std::move in order to claim C++11
support works.
The minimum OS X versions need to be fixed elsewhere.
Change-Id: Ib056b47dde3341ef9a52ffff13ef1d2ac3923f5c
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Prefer -std=gnu++11 unless strict_c++11 is defined. You can enable
strict C++11/C++14 mode by using
CONFIG += strict_c++
That is enabled for Qt's own code, so we we don't accidentally use GNU
extensions in portable code.
There's no support for strict C++98 mode (that is, the -ansi option).
[ChangeLog][qmake] By default, GNU extensions are now enabled with
Clang, GCC and ICC even in C++11 and C++14 modes. To disable the GNU
extensions, add to your .pro file: CONFIG += strict_c++.
Change-Id: Ib056b47dde3341ef9a52ffff13ef14de2169bef5
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
This means we have to bump the deployment target to Lion (10.7), as the
LLVM 'libc++' C++ standard library does not support Snow Leopard (10.6).
For iOS the deployment target has to be bumped from 4.3 to 5.0, but we
don't enable C++11 by default yet as it's not tested enough on iOS.
Users who wish to deploy to 10.6 need to build their own Qt,
passing -no-c++11 to configure.
Change-Id: I7b5d20ab002db889d1091a4b7ff600f62caa7f06
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
There was quite a bit of cruft left over from older Xcode version. We
now produce Xcode 3.2 compatible files, similar to what Xcode would do
when asked to upgrade one of our generated files. In particular:
- Removed refType
- Set more lastKnownFileTypes
- Renamed defaultConfigurationIsName to defaultConfigurationName
- Add runOnlyForDeploymentPostprocessing = 0 to build phases
- Don't put buildSettings directly into PBXNativeTarget
- Don't write productSettingsXML
- Don't write startupPath
- Don't write name when path is the exact same
- Write empty buildSetting lists as empty string
- Don't write empty PBXBuildFile settings
- Don't write generated/neede filenames for PBXShellScriptBuildPhase
- Use PBXFileReference instad of PBXFrameworkReference
- Prune deprecated buildSetting variables
- Remove deprecated PBXBuildStyle sections
- Resolve correct CC/CPLUSPLUS/LDPLUSPLUS
- Write IPHONEOS_DEPLOYMENT_TARGET
Change-Id: Ia2365c2623fe898878bd10636c3b85145c1cff04
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Add mkspecs/macx-clang-32
Add mkspecs/macx-g++-32
Add mkspecs/common/clang-mac.conf
Skip the rest of the Mac mkspecs (icc, llvm, g++40,
g++42, builder, Xcode, xlc) pending a cleanup where
we determine which ones to keep.
Change-Id: I00ceddfcbdb5119cb132433bad43e4aed016eab2
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: James Turner <james.turner@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com>
