[Qgis-developer] compilation error

[Martin Dobias]

On 5/11/07, Byambaa Mendbayar <mendbayar_b at mongol.net> wrote:
> Dear all,
>
> I had tried to compile latest SVN head. But it wasn't working. I have
> getting following error messages.
>
> =================================================================
> D:\devel\workplace\unstable\qgis_head\build>make
> [  0%] Built target svnversion
> [  8%] Built target ui
> [  8%] Building CXX object
> src/core/CMakeFiles/qgis_core.dir/qgsdistancearea.obj
>
> d:\devel\workplace\unstable\qgis_head\src\core\qgsdistancearea.cpp: In
> member fu
> nction `double QgsDistanceArea::computeDistanceBearing(const QgsPoint&,
> const Qg
> sPoint&, double*, double*)':
> d:\devel\workplace\unstable\qgis_head\src\core\qgsdistancearea.cpp:443:
> warning:
>  'sinLambda' might be used uninitialized in this function
> d:\devel\workplace\unstable\qgis_head\src\core\qgsdistancearea.cpp:443:
> warning:
>  'cosLambda' might be used uninitialized in this function
> d:\devel\workplace\unstable\qgis_head\src\core\qgsdistancearea.cpp:443:
> warning:
>  'sinSigma' might be used uninitialized in this function
> d:\devel\workplace\unstable\qgis_head\src\core\qgsdistancearea.cpp:443:
> warning:
>  'cosSigma' might be used uninitialized in this function
> d:\devel\workplace\unstable\qgis_head\src\core\qgsdistancearea.cpp:444:
> warning:
>  'sigma' might be used uninitialized in this function
> d:\devel\workplace\unstable\qgis_head\src\core\qgsdistancearea.cpp:444:
> warning:
>  'cosSqAlpha' might be used uninitialized in this function
> d:\devel\workplace\unstable\qgis_head\src\core\qgsdistancearea.cpp:444:
> warning:
>  'cos2SigmaM' might be used uninitialized in this function
> d:\devel\workplace\unstable\qgis_head\src\core\qgsdistancearea.cpp:445:
> warning:
>  'tu1' might be used uninitialized in this function
> d:\devel\workplace\unstable\qgis_head\src\core\qgsdistancearea.cpp:445:
> warning:
>  'tu2' might be used uninitialized in this function
> mingw32-make[2]: *** [src/core/CMakeFiles/qgis_core.dir/qgsdistancearea.obj]
> Err
> or 1
> mingw32-make[1]: *** [src/core/CMakeFiles/qgis_core.dir/all] Error 2
> mingw32-make: *** [all] Error 2
>
> D:\devel\workplace\unstable\qgis_head\build>

Hi,

I see only warnings there - open CMakeSetup and set variable PEDANTIC
to FALSE so that warnings won't be treated as errors.

> =================================================================
>
> I was following README_windows.txt instruction; I mean I was using "MinGW
> Makefiles" option when it was arise in CMAKESETUP.exe
>
> Also I have leak in compiling 0.8 branches.
> ================================================================
> ext+0x1003):misc.c: undefined reference to `InitializeCriticalSection at 4'
> D:/devel/bin/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../libmingwex.a(misc.o
> )(.t
> ext+0x102b):misc.c: undefined reference to `EnterCriticalSection at 4'
> D:/devel/bin/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../libmingwex.a(misc.o
> )(.t
> ext+0x1068):misc.c: undefined reference to `LeaveCriticalSection at 4'
> D:/devel/bin/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../libmingwex.a(misc.o
> )(.t
> ext+0x121d):misc.c: undefined reference to `Sleep at 4'
> D:/devel/bin/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../libmingwex.a(misc.o
> )(.t
> ext+0x123b):misc.c: undefined reference to `Sleep at 4'
> D:/devel/bin/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../libmingwex.a(misc.o
> )(.t
> ext+0x125a):misc.c: undefined reference to `EnterCriticalSection at 4'
> D:/devel/bin/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../libmingwex.a(misc.o
> )(.t
> ext+0x1294):misc.c: undefined reference to `LeaveCriticalSection at 4'
> D:/devel/bin/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../libmingwex.a(misc.o
> )(.t
> ext+0x12b8):misc.c: undefined reference to `InterlockedExchange at 8'
> D:/devel/bin/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../libmingwex.a(misc.o
> )(.t
> ext+0x12d4):misc.c: undefined reference to `InitializeCriticalSection at 4'
> D:/devel/bin/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../libmingwex.a(misc.o
> )(.t
> ext+0x12fd):misc.c: undefined reference to `EnterCriticalSection at 4'
> collect2: ld returned 1 exit status
> mingw32-make[2]: *** [src/core/libqgis_core.dll] Error 1
> mingw32-make[1]: *** [src/core/CMakeFiles/qgis_core.dir/all] Error 2
> mingw32-make: *** [all] Error 2
>
> D:\devel\workplace\stable\qgis_0.8.1\build>

I don't know what's up with this - isn't this because of mixture of
different installations of MinGW? It looks like linker is trying to
use libmingwex.a from
D:/devel/bin/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../ however I
think it should use stuff from c:/msys/mingw. Please check your paths.

Also, on problems it's good idea to use run make in verbose mode:
make VERBOSE=1
This way, it will also show commands it executes and not only their
output. This is much more helpful than just the error message you'll
get.

Regards
Martin