diff options
Diffstat (limited to 'mkspecs/features/qt_module.prf')
| -rw-r--r-- | mkspecs/features/qt_module.prf | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mkspecs/features/qt_module.prf b/mkspecs/features/qt_module.prf index 11509eeb40..ff40e16e79 100644 --- a/mkspecs/features/qt_module.prf +++ b/mkspecs/features/qt_module.prf @@ -126,6 +126,23 @@ aix-g++* { QMAKE_CXXFLAGS += -mminimal-toc } +sse2:!contains(QT_CPU_FEATURES.$$QT_ARCH, sse2):!host_build:!if(static:contains(QT_CONFIG, shared)) { + # If the compiler supports SSE2, enable it unconditionally in all of Qt shared libraries + # (and only the libraries). This is not expected to be a problem because: + # - on Windows, sharing of libraries is uncommon + # - on Mac OS X, all x86 CPUs already have SSE2 support (we won't even reach here) + # - on Linux, the dynamic loader can find the libraries on LIBDIR/sse2/ + # The last guarantee does not apply to executables and plugins, so we can't enable for them. + QT_CPU_FEATURES.$$QT_ARCH += sse sse2 + QMAKE_CFLAGS += $$QMAKE_CFLAGS_SSE2 + QMAKE_CXXFLAGS += $$QMAKE_CFLAGS_SSE2 +} +gcc:equals(QT_ARCH, i386):contains(QT_CPU_FEATURES.$$QT_ARCH, sse2) { + # Turn on SSE-based floating-point math + QMAKE_CFLAGS += -mfpmath=sse + QMAKE_CXXFLAGS += -mfpmath=sse +} + android: CONFIG += qt_android_deps #install directives |