win32: Add support for wglUseFontBitmaps().

Fixes #10.

include/epoxy/wgl.h

@@ -46,6 +46,12 @@ extern "C" {
 #define __wglxext_h_
 #endif
 
+#ifdef UNICODE
+#define wglUseFontBitmaps wglUseFontBitmapsW
+#else
+#define wglUseFontBitmaps wglUseFontBitmapsA
+#endif
+
 #include "epoxy/wgl_generated.h"
 
 bool epoxy_has_wgl_extension(HDC hdc, const char *extension);

src/gen_dispatch.py

@@ -855,7 +855,14 @@ for file in args.files:
     name = os.path.basename(file).split('.xml')[0]
     generator = Generator(name)
     generator.parse(file)
+
     generator.drop_weird_glx_functions()
+
+    # This is an ANSI vs Unicode function, handled specially by
+    # include/epoxy/wgl.h
+    if 'wglUseFontBitmaps' in generator.functions:
+        del generator.functions['wglUseFontBitmaps']
+
     generator.sort_functions()
     generator.resolve_aliases()
     generator.fixup_bootstrap_function('glGetString',