fixed FONTCONFIG compilation

Author: zenorogue

basegraph.cpp

@@ -250,10 +250,26 @@ EX int font_id = 0;
 #ifdef FONTCONFIG
 TTF_Font* findfont(int siz) {
 
+  auto orig = cfont->filename;
+
   FcPattern   *pat;
   FcResult	result;
   if (!FcInit()) return nullptr;
-  pat = FcNameParse((FcChar8 *)cfont->filename.c_str());
+
+  string s =cfont->filename;
+  auto rep = [&] (string what, string by) {
+    int pos = s.size() - what.size();
+    if(pos < 0) return;
+    if(s.substr(pos) == what) s = s.substr(0, pos) + by;
+    };
+  rep(".ttf", "");
+  rep(".otf", "");
+  rep(".TTF", "");
+  rep(".OTF", "");
+  rep("-Bold", ":weight=bold");
+  rep("-Regular", ":weight=regular");
+
+  pat = FcNameParse((FcChar8 *)s.c_str());
   FcConfigSubstitute(0, pat, FcMatchPattern);
   FcDefaultSubstitute(pat);
 
@@ -270,7 +286,7 @@ TTF_Font* findfont(int siz) {
   FcFini();
   cfont->use_fontconfig = false;
   if(debugflags & DF_INIT) println(hlog, "fontpath is: ", cfont->filename);
-  return TTF_OpenFont(cfont->filename, siz);
+  return TTF_OpenFont(cfont->filename.c_str(), siz);
   }
 #endif
 
@@ -282,7 +298,7 @@ void loadfont(int siz) {
 
     #ifdef FONTCONFIG
     if(cf == NULL && cfont->use_fontconfig)
-      cf = find_font_using_fontconfig(siz);
+      cf = findfont(siz);
     #endif
 
     if(cf == NULL) {