Fix freetype include paths.
https://github.com/love2d/love/commit/3d82eecc0847ce13d22950ba21f912de6e526fe6
--- src/modules/font/freetype/Font.h
+++ src/modules/font/freetype/Font.h
@@ -30,10 +30,8 @@
 #else
 #include <ft2build.h>
 #endif
-#include <freetype/freetype.h>
-#include <freetype/ftglyph.h>
-#include <freetype/ftoutln.h>
-#include <freetype/fttrigon.h>
+#include FT_FREETYPE_H
+#include FT_GLYPH_H
 
 namespace love
 {
--- src/modules/font/freetype/TrueTypeRasterizer.h
+++ src/modules/font/freetype/TrueTypeRasterizer.h
@@ -27,10 +27,8 @@
 
 // TrueType2
 #include <ft2build.h>
-#include <freetype/freetype.h>
-#include <freetype/ftglyph.h>
-#include <freetype/ftoutln.h>
-#include <freetype/fttrigon.h>
+#include FT_FREETYPE_H
+#include FT_GLYPH_H
 
 namespace love
 {