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Append LTCG arguments properly 

If the QMAKE_CXXFLAGS already had -ffat-lto-objects, the *= wouldn't add
it it again, after our "-flto -fno-fat-lto-objects", which meant the
last one would stand.

Change-Id: Ic9cfa6256b5045caa6e6fffd15a7f6cda7aaa837
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Thiago Macieira 2019-06-13 21:39:19 -07:00
parent 7ae2f47214
commit 36c6b7ee4d
1 changed files with 6 additions and 3 deletions
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9
mkspecs/features/ltcg.prf
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@ -28,7 +28,10 @@ CONFIG(release, debug|release) {
}
load(link_ltcg)
QMAKE_CFLAGS *= $$QMAKE_CFLAGS_LTCG
QMAKE_CXXFLAGS *= $$QMAKE_CXXFLAGS_LTCG
QMAKE_LFLAGS *= $$QMAKE_LFLAGS_LTCG
QMAKE_CFLAGS -= $$QMAKE_CFLAGS_LTCG
QMAKE_CFLAGS += $$QMAKE_CFLAGS_LTCG
QMAKE_CXXFLAGS -= $$QMAKE_CXXFLAGS_LTCG
QMAKE_CXXFLAGS += $$QMAKE_CXXFLAGS_LTCG
QMAKE_LFLAGS -= $$QMAKE_LFLAGS_LTCG
QMAKE_LFLAGS += $$QMAKE_LFLAGS_LTCG
}