Re: gd.trm issue for mingw-gcc-4.3.0 building

[Ethan A M. <merritt@u.washington.edu>]

On Tuesday 16 December 2008, Petr Mikulik wrote:
> > I have been struggling to build gd libraries for these days.  Today I have succeeded to build
> > gd-2.0.36RC1 static library and get rid of the problem of mingw-gcc-4.3.0 building.
> > 
> > No modification has not been required for gd.trm.
> > 
> > However it is required to add '-lfontcongfig -liconv' to linker flag in makefile.mgw.
> > (This is required regardless gcc version.)
> >
> > Where is the suitable place to add the flags: '-lfontconfig -liconv' ?
> 
> I use an older static version of gd and these flags cannot be used (no 
> iconv.a).
>  
> > Temporary I modified  
> > 
> > ifdef FREETYPE
> >   CFLAGS += -DHAVE_GD_TTF
> >   TERMLIBS += -lfreetype
> > endif
> >  |
> >  V
> > ifdef FREETYPE
> >   CFLAGS += -DHAVE_GD_TTF
> >   TERMLIBS += -lfreetype -lfontconfig -liconv
> > endif
> > 
> > But it seem not so good to do it.
> 
> Aha, so you need them for your version of freetype, not for gd.

libgd requires freetype.
libgd also requires fontconfig.

I think it is correct to put them both in TERMLIBS as shown above.

> Where do fontconfig.a and iconv.a come from?

fontconfig is required by libgd directly

iconv is used for character encoding conversions and internationalization, 
but I don't know why there is a dependency in this case. In fact, I don't
even have a libiconv on my machines, it is a stand-alone utility.


-- 
Ethan A Merritt
Biomolecular Structure Center
University of Washington, Seattle 98195-7742