Fix the build on 32 bit arches

250.patch

@@ -0,0 +1,25 @@
+From 1403303e77ce0c5a4d4c52d6a3b2a820f47241ee Mon Sep 17 00:00:00 2001
+From: Emmanuele Bassi <ebassi@gnome.org>
+Date: Fri, 30 Apr 2021 12:15:25 +0100
+Subject: [PATCH] Remove redeclaration of khronos_uintptr_t
+
+The type is being redeclared because I didn't see the original
+declaration when I wrote 144cbc9325250081f2eb584ca5deb13aaf1c2433.
+
+Fixes: #249
+---
+ src/gen_dispatch.py | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/src/gen_dispatch.py b/src/gen_dispatch.py
+index b686824..3daad84 100755
+--- a/src/gen_dispatch.py
++++ b/src/gen_dispatch.py
+@@ -535,7 +535,6 @@ def write_header(self, out_file):
+             self.outln('    KHRONOS_TRUE  = 1,')
+             self.outln('    KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM')
+             self.outln('} khronos_boolean_enum_t;')
+-            self.outln('typedef uintptr_t khronos_uintptr_t;')
+ 
+         if self.target == "glx":
+             self.outln('#include <X11/Xlib.h>')

libepoxy.spec

@@ -6,6 +6,10 @@ License: MIT
 URL: https://github.com/anholt/libepoxy
 Source0: %{url}/releases/download/%{version}/%{name}-%{version}.tar.xz
 
+# Backported from upstream
+# https://github.com/anholt/libepoxy/pull/250
+Patch0: 250.patch
+
 BuildRequires: meson
 BuildRequires: gcc
 BuildRequires: pkgconfig(gl)