Add an user font directory for Win32 to the default font path

Patch from @takase1121

Fixes #144

configure.ac

@@ -486,7 +486,7 @@ AC_ARG_WITH(default-fonts,
 case "$default_fonts" in
 yes)
 	if test "$os_win32" = "yes"; then
-		default_fonts="WINDOWSFONTDIR"
+		default_fonts="WINDOWSFONTDIR,WINDOWSUSERFONTDIR"
 	elif test "$os_darwin" = "yes"; then
 		default_fonts="/System/Library/Fonts,/Library/Fonts,~/Library/Fonts,/System/Library/Assets/com_apple_MobileAsset_Font3,/System/Library/Assets/com_apple_MobileAsset_Font4"
 	else

meson.build

@@ -208,7 +208,7 @@ prefix = get_option('prefix')
 fonts_conf = configuration_data()
 
 if host_machine.system() == 'windows'
-  fc_fonts_path = ['WINDOWSFONTDIR']
+  fc_fonts_path = ['WINDOWSFONTDIR', 'WINDOWSUSERFONTDIR']
   fc_cachedir = 'LOCAL_APPDATA_FONTCONFIG_CACHE'
 else
   if host_machine.system() == 'darwin'

src/fcxml.c

@@ -1370,6 +1370,16 @@ _get_real_paths_from_prefix(FcConfigParse *parse, const FcChar8 *path, const FcC
 	if (p) *p = '\0';
 	strcat ((char *) path, "\\..\\share\\fonts");
     }
+    else if (strcmp ((const char *) path, "WINDOWSUSERFONTDIR") == 0)
+    {
+        path = buffer;
+        if (!(pSHGetFolderPathA && SUCCEEDED(pSHGetFolderPathA(NULL, /* CSIDL_LOCAL_APPDATA */ 28, NULL, 0, (char *) buffer))))
+        {
+            FcConfigMessage(parse, FcSevereError, "SHGetFolderPathA failed");
+            return NULL;
+        }
+        strcat((char *) path, "\\Microsoft\\Windows\\Fonts");
+    }
     else if (strcmp ((const char *) path, "WINDOWSFONTDIR") == 0)
     {
 	int rc;