From a4883794eda094aac958d606ba82316b193ed95e Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Feb 16 2019 23:28:59 +0000
Subject: Fix FTBFS (rhbz#1674575)


---

diff --git a/allegro-4.4.2-ftbfs.patch b/allegro-4.4.2-ftbfs.patch
new file mode 100644
index 0000000..093df69
--- /dev/null
+++ b/allegro-4.4.2-ftbfs.patch
@@ -0,0 +1,39 @@
+diff -up allegro-4.4.2/addons/allegrogl/include/alleggl.h~ allegro-4.4.2/addons/allegrogl/include/alleggl.h
+--- allegro-4.4.2/addons/allegrogl/include/alleggl.h~	2019-02-17 00:22:14.000000000 +0100
++++ allegro-4.4.2/addons/allegrogl/include/alleggl.h	2019-02-17 00:23:57.342718525 +0100
+@@ -60,12 +60,9 @@ typedef __int64 INT64;
+ 
+ #else /* ALLEGRO_MACOSX */
+ 
+-/* HACK: Prevent both Mesa and SGI's broken headers from screwing us */
+-#define __glext_h_
+-#define __glxext_h_
++#define GL_GLEXT_PROTOTYPES
++#define GLX_GLXEXT_PROTOTYPES
+ #include <GL/gl.h>
+-#undef  __glext_h_
+-#undef  __glxext_h_
+ 
+ #endif /* ALLEGRO_MACOSX */
+ 
+diff -up allegro-4.4.2/addons/allegrogl/src/x.c~ allegro-4.4.2/addons/allegrogl/src/x.c
+--- allegro-4.4.2/addons/allegrogl/src/x.c~	2009-10-17 09:05:52.000000000 +0200
++++ allegro-4.4.2/addons/allegrogl/src/x.c	2019-02-17 00:23:20.470661820 +0100
+@@ -650,7 +650,7 @@ static int decode_fbconfig (GLXFBConfig
+ 		return -1;
+ 	}
+ 
+-	if (!(render_type & GLX_RGBA_BIT) && !(render_type & GLX_RGBA_FLOAT_BIT)) {
++	if (!(render_type & GLX_RGBA_BIT) && !(render_type & GLX_RGBA_FLOAT_BIT_ARB)) {
+ 		TRACE(PREFIX_I "decode_fbconfig: Not RGBA mode\n");
+ 		return -1;
+ 	}
+@@ -674,7 +674,7 @@ static int decode_fbconfig (GLXFBConfig
+ 	/* Floating-point depth is not supported as glx extension (yet). */
+ 	i->float_depth = 0;
+ 
+-	i->float_color = (render_type & GLX_RGBA_FLOAT_BIT);
++	i->float_color = (render_type & GLX_RGBA_FLOAT_BIT_ARB);
+ 
+ 	v = glXGetVisualFromFBConfig(_xwin.display, fbc);
+ 	if (!v) {
diff --git a/allegro.spec b/allegro.spec
index 8a6c5d2..74b022f 100644
--- a/allegro.spec
+++ b/allegro.spec
@@ -6,7 +6,7 @@
 
 Name:           allegro
 Version:        4.4.2
-Release:        22%{?dist}
+Release:        23%{?dist}
 
 Summary:        A game programming library
 Summary(es):    Una libreria de programacion de juegos
@@ -36,6 +36,8 @@ Patch10:        allegro-4.4.2-keybgrab-fix.patch
 Patch11:        allegro-4.4.2-Werror-format-security.patch
 # PPC builds fail when we define aliases for fadd / fdiv / fmull
 Patch12:        allegro-4.4.2-no-fix-aliases.patch
+# Fix build errors with modern GL headers
+Patch13:         allegro-4.4.2-ftbfs.patch
 BuildRequires:  gcc
 BuildRequires:  gcc-c++
 BuildRequires:  texinfo cmake
@@ -384,6 +386,9 @@ install -Dpm 644 misc/allegro.m4 $RPM_BUILD_ROOT%{_datadir}/aclocal/allegro.m4
 
 
 %changelog
+* Sat Feb 16 2019 Hans de Goede <hdegoede@redhat.com> - 4.4.2-23
+- Fix FTBFS (rhbz#1674575)
+
 * Thu Jan 31 2019 Fedora Release Engineering <releng@fedoraproject.org> - 4.4.2-22
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild