[libGD] #165 [Comment added] Build failure on mingw - multiple versions of libgd including 2.0.36RC1

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FS#165 - Build failure on mingw - multiple versions of libgd including 2.0.36RC1
User who did this - Jayne (jayne)

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Forgive my ignorance about libgd; I'm just bumbling around trying to compile it as a dependency for something else. I was able to get libgd 2.0.36RC1 to compile under mingw by making a few modifications:

1) In gd_jpeg.c add #define HAVE_BOOLEAN just above #include "jpeglib.h"

This prevents a conflicting typedef in jmorecfg.h (from libjpeg) from being invoked.

2) (This is not libgd, but...) in jmorecfg.h from libjpeg, wrap "typedef long INT32" inside of #ifndef _BASETSD_H and a #endif, ala
<code>#ifndef XMD_H			/* X11/xmd.h correctly defines INT32 */
#ifndef _BASETSD_H_		/* Microsoft defines it in basetsd.h */
#ifndef _BASETSD_H		/* MinGW defines it in basetsd.h, too */
#ifndef QGLOBAL_H		/* Qt defines it in qglobal.h */
typedef long INT32;
#endif
#endif
#endif
#endif</code>

The "typedef long INT32" conflicts with another typedef provided in basetsd.h. The headers provided by Microsoft define _BASETSD_H_ but the header provided with mingw defines _BASETSD_H (note missing trailing _). A possible work-around for just libgd might be to...
<code>#ifdef _BASETSD_H
#define _BASETSD_H_
#endif</code>
.... perhaps? I'm not sure what the side effects would be, if any.

3) In gd.h, I had to force 
<code>#define BGD_DECLARE(rt) __declspec(dllexport) rt __stdcall</code>
and
<code>#define BGD_EXPORT_DATA_PROT __declspec(dllexport) extern
#define BGD_EXPORT_DATA_IMPL __declspec(dllexport)</code>

With those changes, make seems to have finished without errors.

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More information can be found at the following URL:
http://bugs.libgd.org/?do=details&task_id=165#comment620

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