Symbian: both -O0 and -O3 are specified on armcc commandline when building armv5 udeb

armcc -g -O0 --diag_suppress 66,161,611,654,997,1152,1300,1464,1488,6318,6331 --diag_error 1267 --thumb --fpu softvfp --exceptions --exceptions_unwind -D_MARM_THUMB_ -D_MARM_INTERWORK_ --cpu 5T --enum_is_int -Ono_known_library --fpmode ieee_no_fenv --export_all_vtbl --apcs /inter --dllimport_runtime --visibility_inlines_hidden --fpu softvfp -O3 --diag_suppress 111,185,191,368,1293,1294,2874 -c -D_DEBUG -D_UNICODE -D_SYMBIAN32_ -D_S60_32_ -D_S60_3X_ -D_SERIES60_3X_ -D_ARMCC_ -D_EPOC32_ -D_MARM_ -D_EABI_ -D_ARMCC_2_ -D_ARMCC_2_2_ -D_MARM_ARMV5_ -D_DLL_ -DUNICODE -DQT_KEYPAD_NAVIGATION -DQT_BUILD_GUI_LIB -DQT_NO_USING_NAMESPACE -DQT_MAKEDLL -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DPNG_NO_ASSEMBLER_CODE -DQT_NO_CUPS -DQT_NO_LPR -DQT_NO_FREETYPE -DQT_NO_OPENTYPE -DQT_NO_STYLE_MAC -DQT_NO_STYLE_CDE -DQT_NO_STYLE_WINDOWSVISTA -DQT_NO_STYLE_WINDOWSXP -DQT_NO_STYLE_PLASTIQUE -DQT_NO_STYLE_GTK -DQT_NO_STYLE_CLEANLOOKS -DQT_NO_STYLE_MOTIF -DQT_NO_STYLE_WINDOWSCE -DQT_NO_STYLE_WINDOWSMOBILE -DQ_INTERNAL_QAPP_SRC -DQT_CORE_LIB -DQT_SHARED -D_SUPPORT_CPP_EXCEPTIONS_ -D_PRODUCT_INCLUDE_=\"\S60\devices\S60_3rd_FP2_SDK_v1.1\epoc32\include\variant\Symbian_OS_v9.3.hrh\" --cpp --preinclude \S60\devices\S60_3rd_FP2_SDK_v1.1\epoc32\include\RVCT2_2\RVCT2_2.h -J \S60\devices\S60_32_cursors\qt\src\gui\kernel -J \S60\devices\S60_32_cursors\qt\include\QtCore -J \S60\devices\S60_32_cursors\qt\include\QtCore\tmp -J \S60\devices\S60_32_cursors\qt\include -J \S60\devices\S60_32_cursors\qt\include\tmp -J \S60\devices\S60_32_cursors\nocursor_test\mkspecs\common\symbian -J \S60\devices\S60_32_cursors\nocursor_test\mkspecs\common\symbian\tmp -J \S60\devices\S60_3rd_FP2_SDK_v1.1\epoc32\include -J \S60\devices\S60_32_cursors\qt\src\gui -J \S60\devices\S60_32_cursors\qt\src\gui\tmp -J \S60\devices\S60_3rd_FP2_SDK_v1.1\epoc32\include\stdapis -J \S60\devices\S60_3rd_FP2_SDK_v1.1\epoc32\include\stdapis\sys -J \S60\devices\S60_32_cursors\qt\include\QtGui -J \S60\devices\S60_32_cursors\qt\include\QtGui\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\tmp\rcc\debug_shared -J \S60\devices\S60_32_cursors\qt\src\gui\tmp\rcc\debug_shared\tmp -J \S60\devices\S60_32_cursors\qt\src\3rdparty\libpng -J \S60\devices\S60_32_cursors\qt\src\3rdparty\libpng\tmp -J \S60\devices\S60_32_cursors\qt\src\3rdparty\zlib -J \S60\devices\S60_32_cursors\qt\src\3rdparty\zlib\tmp -J \S60\devices\S60_32_cursors\qt\src\3rdparty\harfbuzz\src -J \S60\devices\S60_32_cursors\qt\src\3rdparty\harfbuzz\src\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\dialogs -J \S60\devices\S60_32_cursors\qt\src\gui\dialogs\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\tmp\moc\debug_shared -J \S60\devices\S60_32_cursors\qt\src\gui\tmp\moc\debug_shared\tmp -J \S60\devices\S60_3rd_FP2_SDK_v1.1\epoc32\include\stdapis\stlport -J \S60\devices\S60_32_cursors\nocursor_test\include -J \S60\devices\S60_32_cursors\nocursor_test\include\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\kernel -J \S60\devices\S60_32_cursors\qt\src\gui\kernel\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\image -J \S60\devices\S60_32_cursors\qt\src\gui\image\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\painting -J \S60\devices\S60_32_cursors\qt\src\gui\painting\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\text -J \S60\devices\S60_32_cursors\qt\src\gui\text\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\styles -J \S60\devices\S60_32_cursors\qt\src\gui\styles\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\widgets -J \S60\devices\S60_32_cursors\qt\src\gui\widgets\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\itemviews -J \S60\devices\S60_32_cursors\qt\src\gui\itemviews\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\inputmethod -J \S60\devices\S60_32_cursors\qt\src\gui\inputmethod\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\graphicsview -J \S60\devices\S60_32_cursors\qt\src\gui\graphicsview\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\util -J \S60\devices\S60_32_cursors\qt\src\gui\util\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\statemachine -J \S60\devices\S60_32_cursors\qt\src\gui\statemachine\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\math3d -J \S60\devices\S60_32_cursors\qt\src\gui\math3d\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\effects -J \S60\devices\S60_32_cursors\qt\src\gui\effects\tmp -J \S60\devices\S60_32_cursors\qt\src\gui\animation -J \S60\devices\S60_32_cursors\qt\src\gui\animation\tmp -J \S60\devices\S60_3rd_FP2_SDK_v1.1\epoc32\include\variant -o \S60\devices\S60_3rd_FP2_SDK_v1.1\EPOC32\BUILD\S60\devices\S60_32_cursors\qt\src\gui\GUI_0X2001B2DD\ARMV5\udeb\qapplication_s60.o \S60\devices\S60_32_cursors\qt\src\gui\kernel\qapplication_s60.cpp