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-rw-r--r--mkspecs/common/clang.conf6
1 files changed, 5 insertions, 1 deletions
diff --git a/mkspecs/common/clang.conf b/mkspecs/common/clang.conf
index df210fe42d..aead581478 100644
--- a/mkspecs/common/clang.conf
+++ b/mkspecs/common/clang.conf
@@ -16,10 +16,13 @@ QMAKE_LINK_SHLIB = $$QMAKE_CXX
CONFIG += clang_pch_style
QMAKE_PCH_OUTPUT_EXT = .pch
+QMAKE_CFLAGS_OPTIMIZE_SIZE = -Oz
+
QMAKE_CFLAGS_ISYSTEM = -isystem
QMAKE_CFLAGS_PRECOMPILE = -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
QMAKE_CFLAGS_USE_PRECOMPILE = -Xclang -include-pch -Xclang ${QMAKE_PCH_OUTPUT}
-QMAKE_CFLAGS_LTCG = -flto
+QMAKE_CFLAGS_LTCG = -flto=thin
+QMAKE_CFLAGS_LTCG_FATOBJECTS = -flto
QMAKE_CFLAGS_DISABLE_LTCG = -fno-lto
QMAKE_CFLAGS_GNUC99 = -std=gnu99
QMAKE_CFLAGS_GNUC11 = -std=gnu11
@@ -27,6 +30,7 @@ QMAKE_CFLAGS_GNUC11 = -std=gnu11
QMAKE_CXXFLAGS_PRECOMPILE = -x c++-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
QMAKE_CXXFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
+QMAKE_CXXFLAGS_LTCG_FATOBJECTS = $$QMAKE_CFLAGS_LTCG_FATOBJECTS
QMAKE_CXXFLAGS_DISABLE_LTCG = $$QMAKE_CFLAGS_DISABLE_LTCG
QMAKE_CXXFLAGS_CXX11 = -std=c++11
QMAKE_CXXFLAGS_CXX14 = -std=c++1y