[PATCH 2/2] weston: fix build failure with --disable-egl

[Hongxu Jia <hongxu.jia@windriver.com>]

Backport a patch from upstream to fix build failure
with --disable-egl
[snip]
|weston-4.0.0/clients/simple-dmabuf-drm.c:783:30: error:
'EGL_NO_DISPLAY' undeclared (first use in this function)
[snip]

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
---
 ...ple-dmabuf-drm-fix-build-with-disable-egl.patch | 71 ++++++++++++++++++++++
 meta/recipes-graphics/wayland/weston_4.0.0.bb      |  1 +
 2 files changed, 72 insertions(+)
 create mode 100644 meta/recipes-graphics/wayland/weston/0001-simple-dmabuf-drm-fix-build-with-disable-egl.patch

diff --git a/meta/recipes-graphics/wayland/weston/0001-simple-dmabuf-drm-fix-build-with-disable-egl.patch b/meta/recipes-graphics/wayland/weston/0001-simple-dmabuf-drm-fix-build-with-disable-egl.patch
new file mode 100644
index 0000000..4820124
--- /dev/null
+++ b/meta/recipes-graphics/wayland/weston/0001-simple-dmabuf-drm-fix-build-with-disable-egl.patch
@@ -0,0 +1,71 @@
+From 2b2d911ef088c430e9bdd135daadf1123d474b24 Mon Sep 17 00:00:00 2001
+From: Emilio Pozuelo Monfort <pochu27@gmail.com>
+Date: Mon, 3 Sep 2018 15:42:10 +0800
+Subject: [PATCH] simple-dmabuf-drm: fix build with --disable-egl
+
+Just rely on getting the supported formats through the dmabuf
+extension.
+
+Signed-off-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>
+Reviewed-by: Daniel Stone <daniels@collabora.com>
+
+Upstream-Status: Backport [https://anongit.freedesktop.org/git/wayland/weston.git]
+
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ clients/simple-dmabuf-drm.c | 11 -----------
+ configure.ac                |  2 +-
+ 2 files changed, 1 insertion(+), 12 deletions(-)
+
+diff --git a/clients/simple-dmabuf-drm.c b/clients/simple-dmabuf-drm.c
+index 2975f3a..88ec451 100644
+--- a/clients/simple-dmabuf-drm.c
++++ b/clients/simple-dmabuf-drm.c
+@@ -53,7 +53,6 @@
+ 
+ #include <wayland-client.h>
+ #include "shared/zalloc.h"
+-#include "shared/platform.h"
+ #include "xdg-shell-unstable-v6-client-protocol.h"
+ #include "fullscreen-shell-unstable-v1-client-protocol.h"
+ #include "linux-dmabuf-unstable-v1-client-protocol.h"
+@@ -763,7 +762,6 @@ static struct display *
+ create_display(int opts, int format)
+ {
+ 	struct display *display;
+-	const char *extensions;
+ 
+ 	display = malloc(sizeof *display);
+ 	if (display == NULL) {
+@@ -776,15 +774,6 @@ create_display(int opts, int format)
+ 	display->req_dmabuf_immediate = opts & OPT_IMMEDIATE;
+ 	display->req_dmabuf_modifiers = (format == DRM_FORMAT_NV12);
+ 
+-	/*
+-	 * hard code format if the platform egl doesn't support format
+-	 * querying / advertising.
+-	 */
+-	extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
+-	if (extensions && !weston_check_egl_extension(extensions,
+-				"EGL_EXT_image_dma_buf_import_modifiers"))
+-		display->xrgb8888_format_found = 1;
+-
+ 	display->registry = wl_display_get_registry(display->display);
+ 	wl_registry_add_listener(display->registry,
+ 				 &registry_listener, display);
+diff --git a/configure.ac b/configure.ac
+index 48cf5cb..e6e9a3f 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -386,7 +386,7 @@ AC_ARG_ENABLE(simple-dmabuf-drm-client,
+                              [do not build the simple dmabuf drm client]),,
+               enable_simple_dmabuf_drm_client="auto")
+ if ! test "x$enable_simple_dmabuf_drm_client" = "xno"; then
+-  PKG_CHECK_MODULES(SIMPLE_DMABUF_DRM_CLIENT, [wayland-client libdrm egl], [have_simple_dmabuf_libs=yes],
++  PKG_CHECK_MODULES(SIMPLE_DMABUF_DRM_CLIENT, [wayland-client libdrm], [have_simple_dmabuf_libs=yes],
+ 		    [have_simple_dmabuf_libs=no])
+ 
+   PKG_CHECK_MODULES(LIBDRM_PLATFORM_FREEDRENO, [libdrm_freedreno],
+-- 
+2.7.4
+
diff --git a/meta/recipes-graphics/wayland/weston_4.0.0.bb b/meta/recipes-graphics/wayland/weston_4.0.0.bb
index 3d192cf..61e2881 100644
--- a/meta/recipes-graphics/wayland/weston_4.0.0.bb
+++ b/meta/recipes-graphics/wayland/weston_4.0.0.bb
@@ -11,6 +11,7 @@ SRC_URI = "https://wayland.freedesktop.org/releases/${BPN}-${PV}.tar.xz \
            file://0001-make-error-portable.patch \
            file://xwayland.weston-start \
            file://0001-weston-launch-Provide-a-default-version-that-doesn-t.patch \
+           file://0001-simple-dmabuf-drm-fix-build-with-disable-egl.patch \
 "
 SRC_URI[md5sum] = "33709aa4d5916f89643fca0fc0064b39"
 SRC_URI[sha256sum] = "a0fc0ae7ef83dfbed12abfe9b8096a24a7dd00705e86fa0db1e619ded18b4b58"
-- 
2.7.4