mingw gcc math.h problem

[Gilles Caulier]

Strange. Here, all digiKam compile fine with TDM-GCC...

Gilles Caulier

2010/11/29 Gert Kello <gert.kello at gmail.com>:
> Hi.
>
> I have dev-util/mingw-w32-20100605
> If I try to compile digikam it errors out at
>
> [  0%] Building CXX object
> digikam/CMakeFiles/digikamcore.dir/__/libs/dimg/filters/sharp/matrix.obj
> In file included from
> e:\kde4\mingw\bin\../lib/gcc/i686-w64-mingw32/4.4.5/../../../../include/c++/4.4.5/cmath:46,
>                 from
> E:\Kde4Devel\GoSC2010\digikam\libs\dimg\filters\sharp\matrix.cpp:45:
> e:\kde4\mingw\bin\../lib/gcc/i686-w64-mingw32/4.4.5/../../../../i686-w64-mingw32/include/math.h:125:
> error: expected unqualified-id before 'int'
> e:\kde4\mingw\bin\../lib/gcc/i686-w64-mingw32/4.4.5/../../../../i686-w64-mingw32/include/math.h:125:
> error: expected ')' before 'int'
> e:\kde4\mingw\bin\../lib/gcc/i686-w64-mingw32/4.4.5/../../../../i686-w64-mingw32/include/math.h:125:
> error: expected ')' before 'int'
> make[2]: *** [digikam/CMakeFiles/digikamcore.dir/__/libs/dimg/filters/sharp/matrix.obj]
> Error 1
> make[1]: *** [digikam/CMakeFiles/digikamcore.dir/all] Error 2
> make: *** [all] Error 2
>
> I figured out that it is caused by "abs" being already defined. I'm
> not qualified in C/C++, so what and where needs to be adjusted?
>
> (I did change
> #ifndef _CRT_ABS_DEFINED
> #define _CRT_ABS_DEFINED
>  int __cdecl abs(int _X);
>  long __cdecl labs(long _X);
> #endif
>
> to
> #ifndef _CRT_ABS_DEFINED
> #define _CRT_ABS_DEFINED
> #ifndef abs
>  int __cdecl abs(int _X);
> #endif
> #ifndef labs
>  long __cdecl labs(long _X);
> #endif
> #endif
>
> and this point seems to compile now)
>
> Gert
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