From 2ed51b47406ef3d942633b23af59bb8e9c5e8edf Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Sun, 27 Oct 2019 15:35:50 +0100
Subject: extra/mutter: backport upstream patch from trunk/ *sigh*

---
 extra/mutter/PKGBUILD       | 10 +++++++++
 extra/mutter/fix-build.diff | 55 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 65 insertions(+)
 create mode 100644 extra/mutter/fix-build.diff

diff --git a/extra/mutter/PKGBUILD b/extra/mutter/PKGBUILD
index 6375c77f..c18d7aae 100644
--- a/extra/mutter/PKGBUILD
+++ b/extra/mutter/PKGBUILD
@@ -5,3 +5,13 @@ eval "$(
       s/\(meson test -C build\)/\1 || true/
     '
 )"
+
+source+=(fix-build.diff)
+sha256sum+=('28aa24daed161f2566ca2b159beb43285184c533956b851a7eb318de741da935')
+
+prepare() {
+  cd $pkgname
+
+  # fix build with libglvnd's EGL headers
+  git apply -3 ../fix-build.diff
+}
diff --git a/extra/mutter/fix-build.diff b/extra/mutter/fix-build.diff
new file mode 100644
index 00000000..79d1e6de
--- /dev/null
+++ b/extra/mutter/fix-build.diff
@@ -0,0 +1,55 @@
+ cogl/cogl/meson.build       | 2 +-
+ src/backends/meta-egl-ext.h | 1 +
+ src/backends/meta-egl.c     | 1 +
+ src/backends/meta-egl.h     | 1 +
+ 4 files changed, 4 insertions(+), 1 deletion(-)
+
+diff --git c/cogl/cogl/meson.build i/cogl/cogl/meson.build
+index 1057ef955..9a642947d 100644
+--- c/cogl/cogl/meson.build
++++ i/cogl/cogl/meson.build
+@@ -48,7 +48,7 @@ cogl_gl_header_h = configure_file(
+ built_headers += [cogl_gl_header_h]
+ 
+ if have_egl
+-  cogl_egl_includes_string = '#include <EGL/egl.h>\n#include <EGL/eglext.h>'
++  cogl_egl_includes_string = '#include <EGL/egl.h>\n#include <EGL/eglext.h>\n#include <EGL/eglmesaext.h>'
+ else
+   cogl_egl_includes_string = ''
+ endif
+diff --git c/src/backends/meta-egl-ext.h i/src/backends/meta-egl-ext.h
+index 8705e7d5b..db0b74f76 100644
+--- c/src/backends/meta-egl-ext.h
++++ i/src/backends/meta-egl-ext.h
+@@ -29,6 +29,7 @@
+ 
+ #include <EGL/egl.h>
+ #include <EGL/eglext.h>
++#include <EGL/eglmesaext.h>
+ 
+ /*
+  * This is a little different to the tests shipped with EGL implementations,
+diff --git c/src/backends/meta-egl.c i/src/backends/meta-egl.c
+index 6554be935..fdeff4f77 100644
+--- c/src/backends/meta-egl.c
++++ i/src/backends/meta-egl.c
+@@ -27,6 +27,7 @@
+ 
+ #include <EGL/egl.h>
+ #include <EGL/eglext.h>
++#include <EGL/eglmesaext.h>
+ #include <gio/gio.h>
+ #include <glib.h>
+ #include <glib-object.h>
+diff --git c/src/backends/meta-egl.h i/src/backends/meta-egl.h
+index f2a816445..4591e7d85 100644
+--- c/src/backends/meta-egl.h
++++ i/src/backends/meta-egl.h
+@@ -28,6 +28,7 @@
+ 
+ #include <EGL/egl.h>
+ #include <EGL/eglext.h>
++#include <EGL/eglmesaext.h>
+ #include <glib-object.h>
+ 
+ #define META_EGL_ERROR meta_egl_error_quark ()
-- 
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