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

[Mark Brand]

> The bug report at
>
>      http://bugreports.qt.nokia.com/browse/QTBUG-5670
>
> proposes to copy the float.h from usr/i686-pc-mingw32/include/ to
> qt-.../include/, But I guess this is even less "clean" than your
> current approach of replacing that absolute include path.
>
> Maybe someone else has an idea on that issue?

This looks like an important clue. I compared the system include paths 
of gcc in mingw-cross-env with  those from the Nokia/Qt's 
MinGW-gcc440_1.zip. Somehow theirs has the directories in the order that 
should work for float.h:

gcc-4.40 from Qt
 wine cpp.exe -v < /dev/null
Using built-in specs.
Target: mingw32
Configured with: ../gcc-4.4.0/configure 
--enable-languages=c,ada,c++,fortran,java,objc,obj-c++ 
--disable-sjlj-exceptions --enable-shared --enable-libgcj 
--enable-libgomp --with-dwarf2 --disable-win32-registry 
--enable-libstdcxx-debug --enable-version-specific-runtime-libs 
--prefix=/mingw --with-gmp=/mingw/src/gmp/root 
--with-mpfr=/mingw/src/mpfr/root --build=mingw32
Thread model: win32
gcc version 4.4.0 (GCC)
COLLECT_GCC_OPTIONS='-E' '-v' '-mtune=i386'
 z:/home/brand/projects/junk2/mingw/bin/../libexec/gcc/mingw32/4.4.0/cc1.exe -E 
-quiet -v -iprefix 
z:\home\brand\projects\junk2\mingw\bin\../lib/gcc/mingw32/4.4.0/ - -mtune=i386
ignoring nonexistent directory "/mingw/include"
ignoring duplicate directory 
"z:/home/brand/projects/junk2/mingw/lib/gcc/../../include"
ignoring duplicate directory 
"z:/home/brand/projects/junk2/mingw/lib/gcc/../../lib/gcc/mingw32/4.4.0/include"
ignoring duplicate directory 
"z:/home/brand/projects/junk2/mingw/lib/gcc/../../lib/gcc/mingw32/4.4.0/include-fixed"
ignoring duplicate directory 
"z:/home/brand/projects/junk2/mingw/lib/gcc/../../lib/gcc/mingw32/4.4.0/../../../../mingw32/include"
ignoring nonexistent directory "/mingw/include"
#include "..." search starts here:
#include <...> search starts here:
 
z:\home\brand\projects\junk2\mingw\bin\../lib/gcc/mingw32/4.4.0/../../../../include
 z:\home\brand\projects\junk2\mingw\bin\../lib/gcc/mingw32/4.4.0/include
 z:\home\brand\projects\junk2\mingw\bin\../lib/gcc/mingw32/4.4.0/include-fixed
 
z:\home\brand\projects\junk2\mingw\bin\../lib/gcc/mingw32/4.4.0/../../../../mingw32/include
End of search list.
# 1 "<stdin>"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "<stdin>"
COMPILER_PATH=z:/home/brand/projects/junk2/mingw/bin/../libexec/gcc/mingw32/4.4.0/;z:/home/brand/projects/junk2/mingw/bin/../libexec/gcc/;z:/home/brand/projects/junk2/mingw/bin/../lib/gcc/mingw32/4.4.0/../../../../mingw32/bin/
LIBRARY_PATH=z:/home/brand/projects/junk2/mingw/bin/../lib/gcc/mingw32/4.4.0/;z:/home/brand/projects/junk2/mingw/bin/../lib/gcc/;z:/home/brand/projects/junk2/mingw/bin/../lib/gcc/mingw32/4.4.0/../../../../mingw32/lib/;z:/home/brand/projects/junk2/mingw/bin/../lib/gcc/mingw32/4.4.0/../../../
COLLECT_GCC_OPTIONS='-E' '-v' '-mtune=i386'

------------------------------------

gcc-4.50 mingw-cross-env
i686-pc-mingw32-cpp -v < /dev/null
....
#include <...> search starts here:
 
/home/brand/projects/mingw-cross-env.dev/qt47/usr/lib/gcc/i686-pc-mingw32/4.5.0/include
 
/home/brand/projects/mingw-cross-env.dev/qt47/usr/lib/gcc/i686-pc-mingw32/4.5.0/include-fixed
 
/home/brand/projects/mingw-cross-env.dev/qt47/usr/lib/gcc/i686-pc-mingw32/4.5.0/../../../../i686-pc-mingw32/include
End of search list.
...



-Mark