qt5base-lts/mkspecs/features/qt_common.prf
Thiago Macieira a31b75b766 Use the GCC and Clang __builtin_bswap intrinsics in qbswap
Glibc will use the intrinsics for 32- and 64-bit, but didn't for 16-bit
(probably because GCC didn't document it until version 4.8), so this
commit will make us access the intrinsics directly the intrisincs for
all type sizes.

Additionally, this will get us access to the compiler intrisics even
without Glibc, such as when building against uclibc or Bionic.

Another benefit is that both Clang and ICC will use the MOVBE
instruction on Atom and Haswell architectures.

Change-Id: I39d1891f479887d719d69ebe4ac92ac9bfeda8af
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2014-12-20 01:41:00 +01:00

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#
# W A R N I N G
# -------------
#
# This file is not part of the Qt API. It exists purely as an
# implementation detail. It may change from version to version
# without notice, or even be removed.
#
# We mean it.
#
QMAKE_DIR_REPLACE_SANE += DESTDIR
CONFIG -= debug_and_release_target
contains(QT_CONFIG, c++11): CONFIG += c++11
contains(TEMPLATE, .*lib) {
# module and plugins
!host_build:contains(QT_CONFIG, reduce_exports): CONFIG += hide_symbols
unix:contains(QT_CONFIG, reduce_relocations): CONFIG += bsymbolic_functions
contains(QT_CONFIG, largefile): CONFIG += largefile
contains(QT_CONFIG, separate_debug_info): CONFIG += separate_debug_info
!isEmpty(_QMAKE_SUPER_CACHE_): \
rplbase = $$dirname(_QMAKE_SUPER_CACHE_)/[^/][^/]*
else: \
rplbase = $$MODULE_BASE_OUTDIR
host_build: \
qt_libdir = $$[QT_HOST_LIBS]
else: \
qt_libdir = $$[QT_INSTALL_LIBS/raw]
contains(QMAKE_DEFAULT_LIBDIRS, $$qt_libdir) {
lib_replace.match = "[^ ']*$$rplbase/lib"
lib_replace.replace =
} else {
lib_replace.match = $$rplbase/lib
lib_replace.replace = $$qt_libdir
}
lib_replace.CONFIG = path
QMAKE_PRL_INSTALL_REPLACE += lib_replace
}
warnings_are_errors:warning_clean {
# If the module declares that it has does its clean-up of warnings, enable -Werror.
# This setting is compiler-dependent anyway because it depends on the version of the
# compiler.
clang {
# Apple clang 4.0-4.2,5.0-5.1
# Regular clang 3.3 & 3.4
apple_ver = $${QT_APPLE_CLANG_MAJOR_VERSION}.$${QT_APPLE_CLANG_MINOR_VERSION}
reg_ver = $${QT_CLANG_MAJOR_VERSION}.$${QT_CLANG_MINOR_VERSION}
contains(apple_ver, "4\\.[012]|5\\.[01]")|contains(reg_ver, "3\\.[34]") {
QMAKE_CXXFLAGS_WARN_ON += -Werror -Wno-error=\\$${LITERAL_HASH}warnings -Wno-error=deprecated-declarations $$WERROR
}
} else:intel_icc:linux {
# Intel CC 13.0 - 15.0, on Linux only
ver = $${QT_ICC_MAJOR_VERSION}.$${QT_ICC_MINOR_VERSION}
linux:contains(ver, "(1[34]\\.|15\\.0)") {
# 177: function "entity" was declared but never referenced
# (too aggressive; ICC reports even for functions created due to template instantiation)
# 1224: #warning directive
# 1478: function "entity" (declared at line N) was declared deprecated
# 1881: argument must be a constant null pointer value
# (NULL in C++ is usually a literal 0)
QMAKE_CXXFLAGS_WARN_ON += -Werror -ww177,1224,1478,1881 $$WERROR
}
} else:gcc:!clang:!intel_icc {
# GCC 4.6-4.9
ver = $${QT_GCC_MAJOR_VERSION}.$${QT_GCC_MINOR_VERSION}
contains(ver, "4\\.[6789]") {
QMAKE_CXXFLAGS_WARN_ON += -Werror -Wno-error=cpp -Wno-error=deprecated-declarations $$WERROR
# GCC prints this bogus warning, after it has inlined a lot of code
# error: assuming signed overflow does not occur when assuming that (X + c) < X is always false
QMAKE_CXXFLAGS_WARN_ON += -Wno-error=strict-overflow
# Work-around for bug https://code.google.com/p/android/issues/detail?id=58135
android: QMAKE_CXXFLAGS_WARN_ON += -Wno-error=literal-suffix
}
}
unset(ver)
}