lower qmake optimization level on msvc

-O2 triggers an optimizer bug where compiling unixmake*.cpp would take
several minutes each. -O1 is not measurably slower, so use that instead.

Change-Id: Ibf8abbecdd69e35cef800841f781543121168f76
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>

diff --git a/qmake/Makefile.win32 b/qmake/Makefile.win32
index 3efe6a6..767237f 100644 (file)
--- a/qmake/Makefile.win32
+++ b/qmake/Makefile.win32
@@ -29,7 +29,7 @@ CFLAGS_EXTRA      = /MP
 !endif
 
 CFLAGS_BARE = -c -Fo./ \
-              -W3 -nologo -O2 \
+              -W3 -nologo -O1 \
               $(CFLAGS_EXTRA) \
               -I. -Igenerators -Igenerators\unix -Igenerators\win32 -Igenerators\mac -Igenerators\integrity \
               -I$(BUILD_PATH)\include -I$(BUILD_PATH)\include\QtCore -I$(BUILD_PATH)\include\QtCore\$(QT_VERSION) -I$(BUILD_PATH)\include\QtCore\$(QT_VERSION)\QtCore \