From 7ddaa7049839d57f827bb17b351c8d7b530152b6 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 28 Sep 2017 11:22:18 +0530
Subject: [PATCH] Cleanup freetype library on exit

---
 kitty/freetype.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/kitty/freetype.c b/kitty/freetype.c
index 933308377..6cb918310 100644
--- a/kitty/freetype.c
+++ b/kitty/freetype.c
@@ -260,6 +260,10 @@ PyTypeObject Face_Type = {
 
 INIT_TYPE(Face)
 
+static void
+free_freetype() {
+    FT_Done_FreeType(library);
+}
 
 bool 
 init_freetype_library(PyObject *m) {
@@ -268,6 +272,10 @@ init_freetype_library(PyObject *m) {
         set_freetype_error("Failed to initialize FreeType library, with error:", error);
         return false;
     }
+    if (Py_AtExit(free_freetype) != 0) {
+        PyErr_SetString(PyExc_RuntimeError, "Failed to register the freetype library at exit handler");
+        return false;
+    }
     if (PyStructSequence_InitType2(&GlpyhMetricsType, &gm_desc) != 0) return false;
     if (PyStructSequence_InitType2(&BitmapType, &bm_desc) != 0) return false;
     PyModule_AddObject(m, "GlyphMetrics", (PyObject*)&GlpyhMetricsType);