Description: replace the non-free LuxiMono font
 Currently I'm trying DejaVu Sans Mono, though a Serif
 font may be more appropriate.  Since DejaVu Sans Mono's license is not
 compatible with the GNU GPL, it cannot be bundled in the executable,
 so here's a patch to locate and load it using FontConfig.
 .
 Games such as "The Moon Watch" refer to the original builtin fonts
 in their .ini configuration: "LuxiMonoRegular", "LuxiMonoBold",
 "LuxiMonoOblique", "LuxiMonoBoldOblique". In such case, we probably
 should keep the internal font names as-is (not rename them) and
 silently remap them to the free font.
Forwarded: http://groups.google.com/group/garglk-dev/browse_thread/thread/62a038ac4986d2a
Author: Sylvain Beucler <beuc@beuc.net>
Last-Update: 2009-09-13

Index: gargoyle-free/garglk/fontdata.c
===================================================================
--- gargoyle-free.orig/garglk/fontdata.c	2009-09-13 14:29:45.000000000 +0200
+++ gargoyle-free/garglk/fontdata.c	2009-09-13 14:30:09.000000000 +0200
@@ -1,6 +1,7 @@
 /******************************************************************************
  *                                                                            *
  * Copyright (C) 2006-2009 by Tor Andersson.                                  *
+ * Copyright (C) 2008, 2009  Sylvain Beucler                                        *
  *                                                                            *
  * This file is part of Gargoyle.                                             *
  *                                                                            *
@@ -22,10 +23,12 @@
 
 /* include hex-dumped font files */
 
+/* Excluding non-free Luxi fonts
 #include "lmr.hex"
 #include "lmb.hex"
 #include "lmi.hex"
 #include "lmz.hex"
+*/
 
 #include "cbr.hex"
 #include "cbb.hex"
@@ -37,21 +40,17 @@
 	switch (idx)
 	{
 	case 0:
-		*ptr = LuxiMonoRegular_pfb;
-		*len = LuxiMonoRegular_pfb_len;
-		break;
+	  gli_get_system_font("DejaVu Sans Mono:style=Book", ptr, len);
+	  break;
 	case 1:
-		*ptr = LuxiMonoBold_pfb;
-		*len = LuxiMonoBold_pfb_len;
-		break;
+	  gli_get_system_font("DejaVu Sans Mono:style=Bold", ptr, len);
+	  break;
 	case 2:
-		*ptr = LuxiMonoOblique_pfb;
-		*len = LuxiMonoOblique_pfb_len;
-		break;
+	  gli_get_system_font("DejaVu Sans Mono:style=Oblique", ptr, len);
+	  break;
 	case 3:
-		*ptr = LuxiMonoBoldOblique_pfb;
-		*len = LuxiMonoBoldOblique_pfb_len;
-		break;
+	  gli_get_system_font("DejaVu Sans Mono:style=Bold Oblique", ptr, len);
+	  break;
 
 	case 4:
 		*ptr = CharterBT_Roman_ttf;
@@ -76,3 +75,63 @@
 	}
 }
 
+#include <fontconfig/fontconfig.h>
+#include <stdio.h>
+#include <stdlib.h>
+/* Get filename for canonical font name 'fontname'. Return NULL if the
+   font cannot be found (for correctness, no alternate font will be
+   provided). */
+int gli_get_system_font(char* fontname, unsigned char **ptr, unsigned int *len)
+{
+  *ptr = 0;
+  *len = 0;
+
+  char* filename = NULL;
+  FcPattern* p = NULL;
+  FcChar8* strval = NULL;
+  FcObjectSet *attr = NULL;
+
+  if (!FcInit())
+    {
+      winabort("Internal error: cannot initialize fontconfig");
+      return 0;
+    }
+
+  p = FcNameParse((FcChar8*)fontname);
+  if (p == NULL)
+    {
+      winabort("Internal error: invalid font pattern: %s", fontname);
+      return 0;
+    }
+  /* Grab filename attribute */
+  attr = FcObjectSetBuild (FC_FILE, (char *) 0);
+
+  FcFontSet *fs = FcFontList (0, p, attr);
+  if (fs->nfont == 0)
+    {
+      winabort("gli_get_system_font: no matching font for %s", fontname);
+      return 0;
+    }
+  if (FcPatternGetString(fs->fonts[0], FC_FILE, 0, &strval) == FcResultTypeMismatch
+      || strval == NULL)
+    {
+      winabort("get_fontconfig_path: cannot find font filename for %s", fontname);
+      return 0;
+    }
+
+  FILE* fp = fopen(strval, "rb");
+  fseek(fp, 0L, SEEK_END);
+  *len = ftell(fp);
+  fseek(fp, 0L, SEEK_SET);
+
+  *ptr = malloc(*len);
+  fread(*ptr, 1, *len, fp);
+  fclose(fp);
+
+  FcFontSetDestroy(fs);
+  FcObjectSetDestroy(attr);
+  FcPatternDestroy(p);
+  FcFini();
+
+  return 1;
+}
Index: gargoyle-free/Jamrules
===================================================================
--- gargoyle-free.orig/Jamrules	2009-09-13 14:46:10.000000000 +0200
+++ gargoyle-free/Jamrules	2009-09-13 14:46:13.000000000 +0200
@@ -44,7 +44,7 @@
 
     case LINUX :
         Echo "OS is LINUX (gtk+)" ;
-        PKGCONFIG = "pkg-config freetype2 gtk+-2.0 gdk-x11-2.0 gobject-2.0" ;
+        PKGCONFIG = "pkg-config freetype2 gtk+-2.0 gdk-x11-2.0 gobject-2.0 fontconfig" ;
         #PKGCONFIG = "pkg-config freetype2 gtk+" ;
         SHELLHEADER = "#!/bin/bash" ;		
         GARGLKCCFLAGS = "`$(PKGCONFIG) --cflags`" -fPIC ;