[Mingw-cross-env-list] Qt built with mingw does not define Q_WS_WIN

[Nikos Chantziaras]

After Qt was successfully built, I tried to build my Qt app with it.  I 
have code that needs to work different on Windows, and I check it with:

  #ifndef Q_WS_WIN
  // Unix-only code...
  #endif

However, the Q_WS_WIN macro is not defined and compilation fails.  I'm 
trying to build the project with:

  i686-pc-mingw32-qmake
  make

This results in the following.  Note that the definition of "memicmp" is 
what Q_WS_WIN is needed for.


make -f Makefile.Debug
make[1]: Entering directory `/home/realnc/tmp/qtads'
i686-pc-mingw32-gcc -c -isystem 
/home/realnc/opt/mingw/usr/i686-pc-mingw32/include -pipe -g -O0 -Wall 
-Wno-unused-parameter -DUNICODE -DQT_TABLET -DQT_SESSIONMANAGER 
-DQT_NO_DIRECT3D -DQT_NO_CODECS -DHTMLQT -DTROLLTECH_QT -D_M_PPC 
-DUSE_HTML -DVMGLOB_VARS -DT3_COMPILING_FOR_HTML -DOS_NO_TYPES_DEFINED 
-DVM_STACK_SIZE=65536 -DVM_STACK_RESERVE=1024 
-DVM_UNDO_MAX_RECORDS=65536 -DVM_UNDO_MAX_SAVEPTS=255 -DQT_PHONON_LIB 
-DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN 
-I"../../opt/mingw/usr/i686-pc-mingw32/include/QtCore" 
-I"../../opt/mingw/usr/i686-pc-mingw32/include/QtGui" 
-I"/home/realnc/opt/mingw/usr/i686-pc-mingw32/include/phonon" 
-I"../../opt/mingw/usr/i686-pc-mingw32/include" -I"src" -I"tads2" 
-I"tads3" -I"htmltads" 
-I"../../opt/mingw/usr/i686-pc-mingw32/include/ActiveQt" 
-I"/home/realnc/opt/mingw/usr/i686-pc-mingw32/include/phonon_compat" 
-I"tmp" -I"tmp" -I"." 
-I"../../opt/mingw/usr/i686-pc-mingw32/mkspecs/win32-g++" -o obj/oemqt.o 
src/oemqt.c
In file included from src/osqt.h:55,
                 from tads2/os.h:176,
                 from tads2/lib.h:32,
                 from tads2/std.h:28,
                 from src/oemqt.c:22:
src/missing.h:42: error: conflicting types for 'memicmp'
/home/realnc/opt/mingw/usr/i686-pc-mingw32/include/string.h:91: note: 
previous declaration of 'memicmp' was here
make[1]: *** [obj/oemqt.o] Error 1
make[1]: Leaving directory `/home/realnc/tmp/qtads'
make: *** [debug] Error 2