msvc2015: Align compiler flags with rest of Qt build

msvc-desktop.conf does disable the exception warning for building all
modules, so use the same set of compiler flags for building qmake.

Change-Id: I97026f3cb78e656e8de76e1c8afe19cec6501499
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>

qmake/Makefile.win32

@@ -22,7 +22,7 @@ CFLAGS_EXTRA      = /Zc:wchar_t-
 !  elseif "$(QMAKESPEC)" == "win32-msvc2008" || "$(QMAKESPEC)" == "win32-msvc2010" || "$(QMAKESPEC)" == "win32-msvc2012" || "$(QMAKESPEC)" == "win32-msvc2013"
 CFLAGS_EXTRA      = /MP /D_CRT_SECURE_NO_WARNINGS /D_SCL_SECURE_NO_WARNINGS $(CFLAGS_CRT)
 !  elseif "$(QMAKESPEC)" == "win32-msvc2015"
-CFLAGS_EXTRA      = /MP /D_CRT_SECURE_NO_WARNINGS /D_SCL_SECURE_NO_WARNINGS /Zc:strictStrings /w44456 /w44457 /w44458 $(CFLAGS_CRT)
+CFLAGS_EXTRA      = /MP /D_CRT_SECURE_NO_WARNINGS /D_SCL_SECURE_NO_WARNINGS /Zc:strictStrings /w44456 /w44457 /w44458 /wd4577 $(CFLAGS_CRT)
 !  else
 !    error Unsupported compiler for this Makefile
 !  endif

tools/configure/Makefile.win32

@@ -5,7 +5,7 @@ CONFSRC = $(TOOLSRC)\configure
 PCH           = configure_pch.pch
 DEFINES       = -DUNICODE -DQT_NO_CODECS -DQT_NO_TEXTCODEC -DQT_NO_UNICODETABLES -DQT_LITE_COMPONENT -DQT_NO_COMPRESS -DQT_NO_THREAD -DQT_NO_QOBJECT -DQT_NO_GEOM_VARIANT -D_CRT_SECURE_NO_DEPRECATE -DQT_BOOTSTRAPPED -DQT_BUILD_CONFIGURE -DQT_VERSION_STR=\"$(QTVERSION)\" -DQT_VERSION_MAJOR=$(QT_VERSION_MAJOR) -DQT_VERSION_MINOR=$(QT_VERSION_MINOR) -DQT_VERSION_PATCH=$(QT_VERSION_PATCH)
 INCPATH       = -I"..\..\include" -I"..\..\include\QtCore" -I"..\..\include\QtCore\$(QTVERSION)" -I"..\..\include\QtCore\$(QTVERSION)\QtCore" -I"$(TOOLSRC)\shared" -I"$(QTSRC)mkspecs\win32-msvc2008"
-CXXFLAGS_BARE = -nologo -Zc:wchar_t -W3 -GR -EHsc -w34100 -w34189 $(CFLAGS_CRT) $(EXTRA_CXXFLAGS) $(DEFINES) $(INCPATH)
+CXXFLAGS_BARE = -nologo -Zc:wchar_t -W3 -GR -EHsc -w34100 -w34189 -wd4577 $(CFLAGS_CRT) $(EXTRA_CXXFLAGS) $(DEFINES) $(INCPATH)
 CXXFLAGS      = -FIconfigure_pch.h -Yuconfigure_pch.h -Fp$(PCH) -MP $(CXXFLAGS_BARE)
 LINK          = link
 LFLAGS        = /NOLOGO /DYNAMICBASE /NXCOMPAT /INCREMENTAL:NO /SUBSYSTEM:CONSOLE "/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'" /MANIFEST /MANIFESTFILE:"configure.intermediate.manifest"