msGetBitmapFont and gdfont pointers on Windows

[assefa]

This is a problem that affects windows users :

 in msGetBitmapFont (maplabe.c), we use gdfont pointers like gdFontTiny, 
gdFontSmall, ...

 On gd version 2.0.26 and up (and probably few versions back), these pointers
do not work on windows. We need to use predefined functions like gdFontGetTiny
(), gdFontGetSmall() ... (Note that these functions are new and did not exsist 
on older version like gd-2.0.15 that I used for a long time for windows build)

 Need to find a way to set  this up in the makefiles so that we are able to 
determine which version of gd mapserver is using and do the apporiate thing in 
mapserver.

[assefa]

Assigning it to myself.

[sdlime]

Could the code on all platforms just use the functions too? Seems wiser to fix 
things to use the prefered method than sticking with outdate code. My 2 cents...

Steve

[dmorissette]

Agreed that we could/should use those functions on other platforms too. I could
easily detect those functions in the configure script and set a macro to enable
their use. 

What should the macro be called? GD_HAS_GETBITMAPFONT ?

[assefa]

I can update the source code and the windows makefiles using #ifdef 
GD_HAS_GETBITMAPFONT . Would that work ?

[dmorissette]

Works for me. And i'll do the configure changes after.

[sdlime]

At what GD version did those functions appear? We need a fairly recent version 
of GD anyway.

Steve

[assefa]

The change was intrduced in GD 2.0.22.

[assefa]

I have modified maplable.c (r1.72) and windows nmake.opt. Test on windows with
gd-2.0.26

[dmorissette]

I'll update the configure script and Unix makefiles now.

[dmorissette]

Fixed in 4.3 CVS. Updated configure with a test to detect gdFontGetTiny and set
-DGD_HAS_GETBITMAPFONTS in the compile flags if necessary.