Re: [Mingw-cross-env-list] Qt 4.7 (help wanted)

[Mark Brand]

> > Here is the line:
> >
> > QMAKE_CFLAGS = -pipe -isystem /usr/i686-pc-mingw32/include
> >
> > I would like to avoid having to specify the full path this way. Does
> > anyone know of a way to put the intended directory in the include path
> > without resorting to this?
> Since "/usr/i686-pc-mingw32/include" is already in our GCC's
> system include path, I don't see a need for that option at all.
>
> Without having tested, I'm pretty sure you can simplify the line to:
>
>      QMAKE_CFLAGS = -pipe

That's what I thought too, but then this happens when building Qt:

make[2]: Entering directory 
`/home/brand/projects/mingw-cross-env.dev/qt47/tmp-qt/qt-everywhere-opensource-src-4.7.0-beta1/src/corelib' 

i686-pc-mingw32-g++ -c -include .pch/release-static/qt_pch.h -pipe -O2 
-Wall -frtti -fexceptions -mthreads -DQT_THREAD_SUPPORT -DUNICODE 
-DQT_LARGEFILE_SUPPORT -DQT_BUILD_CORE_LIB -DQT_NO_USING_NAMESPACE 
-DQT_ASCII_CAST_WARNINGS -DQT3_SUPPORT -DQT_MOC_COMPAT 
-DQT_USE_FAST_OPERATOR_PLUS -DQT_USE_FAST_CONCATENATION 
-D_USE_MATH_DEFINES -DHB_EXPORT=Q_CORE_EXPORT -DQT_HAVE_MMX 
-DQT_HAVE_3DNOW -DQT_HAVE_SSE -DQT_HAVE_MMXEXT -DQT_HAVE_SSE2 
-DQT_NO_DEBUG -I'../../include' -I'../../include/QtCore' 
-I'.rcc/release-static' -I'tmp' -I'global' -I'../3rdparty/harfbuzz/src' 
-I'../3rdparty/md5' -I'../3rdparty/md4' -I'../../include/ActiveQt' 
-I'.moc/release-static' -I'../../mkspecs/win32-g++-cross' -o 
.obj/release-static/qlocale.o tools/qlocale.cpp
tools/qlocale.cpp: In function 'char* qdtoa(double, int, int, int*, 
int*, char**, char**)':
tools/qlocale.cpp:6589:14: error: '_clear87' was not declared in this scope
tools/qlocale.cpp:6590:43: error: '_control87' was not declared in this 
scope
make[2]: *** [.obj/release-static/qlocale.o] Error 1

I'm not sure what's happening here, but it looks like the items in 
question are defined here:

usr/i686-pc-mingw32/include/float.h:108:#define         _clear87        
_clearfp
usr/i686-pc-mingw32/include/float.h:103:_CRTIMP unsigned int __cdecl 
__MINGW_NOTHROW _control87 (unsigned int unNew, unsigned int unMask);

Is the "#include <float.h>" in tools/qlocale.cpp picking up  a different 
float.h?

regards,
Mark