[SDL] Linux MinGW linking

[Cournia Nathan A]

Thought I'd follow up my old messages.  I've fixed the SDL_main linking
problem by declaring my main function as:

int main( int argc, char *argv[] )

rather than:

int main( )

as outlined at:

http://www.libsdl.org/faq.php?action=listentries&category=4#48

The vsnprintf linking problem is still a mystery.  As a quick fix I
declared all of my calls to vsnprintf to vsprintf.  This problem could be
caused by my use of MinGW's gcc 3.1 environment instead of the stable
2.95.

If anyone has any insights as to how to fix the vsnprinf linking problem,
they would be appreciated.  Thanks.

nathan

On Sun, 4 Aug 2002, Cournia Nathan A wrote:

> I'm getting closer.  This is what I've done so far.
>
> 1. Followed the directions at:
> http://www.libsdl.org/extras/win32/cross/README.txt
>
> 2. Installed: http://www.libsdl.org/release/SDL-devel-1.2.4-mingw32.tar.gz
>
> 3. Installed the following:
> http://www.newimage.com/~rhk/crossgcc/zlib-1.1.3-cross-bin.tar.gz
> http://www.newimage.com/~rhk/crossgcc/libpng-1.0.8-cross-bin.tar.gz
> http://www.newimage.com/~rhk/crossgcc/jpeg-6b-cross-bin.tar.gz
>
> 4. Compiled freetype 2.1.2.
>
> 5. Compiled SDL_ttf 2.0.5
>
> Which brings me to my current problem.  Again, I'm having linking
> problems:
>
> g++ particle.o fling.o ../cmds.o ../tremor.o ../fps.o ../console.o
> ../font.o ../gl_draw.o ../image.o ../shell.o ../timer.o ../vector.o
> ../video.o  `sdl-config --libs` -lopengl32 -lglu32 -lSDL_ttf -o fling
> /usr/local/cross-tools/i386-mingw32msvc/lib/libmingwex.a(snprintf.o)(.text+0x20):snprintf.c:
> multiple definition of `vsnprintf'
> fling.o(.text$vsnprintf+0x0):/tmp/cross/cross2/include/g++-v3/bits/stl_alloc.h:
> first defined here
> /usr/local/cross-tools/i386-mingw32msvc/lib/libSDLmain.a(SDL_main.o.b): In
> function `console_main':
> /home/hercules/release/SDL-1.2.4/src/main/SDL_main.c:230: undefined
> reference to `SDL_main'
> make: *** [fling] Error 1
>
> The problems seem to be with vsnprintf and SDL_main.
>
> sdl-config produces the following:
>
> -L/usr/local/cross-tools/i386-mingw32msvc/lib -lmingw32 -lSDLmain -lSDL
> -mwindows
>
> Any ideas on how to fix this?  Thanks.
>
> nathan
>
> On Sun, 4 Aug 2002, Johannes Schmidt wrote:
>
> > On Sunday 04 August 2002 06:29, Cournia Nathan A wrote:
> > [snip]
> > > I've successfully built and installed the MinGW environment.  However,
> > > when trying to compile my application I get the following linking errors:
> > >
> > > g++ particle.o fling.o ../cmds.o ../tremor.o ../fps.o ../console.o
> > > ../font.o ../gl_draw.o ../image.o ../shell.o ../timer.o ../vector.o
> > > ../video.o  `sdl-config --libs`  -L/usr/lib -L/usr/X11R6/lib -lGLU -lGL
> > > -lSDL_ttf -o fling
> > >
> > > /tmp/cross/cross2//lib/gcc-lib/i386-mingw32msvc/3.1/../../../../
> > > i386-mingw32msvc/bin/ld:
> > > cannot find -lGLU
> >
> > The OpenGL libraries for Windows are called opengl32.dll and glu32.dll.
> >
> > Try something like "-lopengl32 -lglu32".
> >
> >
> > --
> > Johannes Schmidt
> >
> > < http://libufo.sourceforge.net > Your widget set for OpenGL
> >
> > _______________________________________________
> > SDL mailing list
> > SDL at libsdl.org
> > http://www.libsdl.org/mailman/listinfo/sdl
> >
>
>
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