[PATCH 4/7] weston: Find wayland-protocol files in proper location during cross compile

[Khem Raj <raj.khem@gmail.com>]

| make: *** No rule to make target 'protocol/xdg-shell-unstable-v6-protocol.c', needed by 'all'.  Stop.
| ERROR: oe_runmake failed

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 ...R-for-defining-WAYLAND_PROTOCOLS_DAT.patch | 30 +++++++++++++++++++
 meta/recipes-graphics/wayland/weston_4.0.0.bb |  5 +++-
 2 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 meta/recipes-graphics/wayland/weston/0001-use-PKG_CHECK_VAR-for-defining-WAYLAND_PROTOCOLS_DAT.patch

diff --git a/meta/recipes-graphics/wayland/weston/0001-use-PKG_CHECK_VAR-for-defining-WAYLAND_PROTOCOLS_DAT.patch b/meta/recipes-graphics/wayland/weston/0001-use-PKG_CHECK_VAR-for-defining-WAYLAND_PROTOCOLS_DAT.patch
new file mode 100644
index 0000000000..9e0f4083dc
--- /dev/null
+++ b/meta/recipes-graphics/wayland/weston/0001-use-PKG_CHECK_VAR-for-defining-WAYLAND_PROTOCOLS_DAT.patch
@@ -0,0 +1,30 @@
+From 39c5e397ceb7ac4f9c47d04ab9ed26570742cf6a Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 20 Jul 2018 23:02:10 -0700
+Subject: [PATCH] use PKG_CHECK_VAR for defining WAYLAND_PROTOCOLS_DATADIR
+
+This allows to override the wayland-protocols pkgdatadir with the
+WAYLAND_PROTOCOLS_DATADIR from environment.
+
+pkgconfig would return an absolute path in /usr/share/wayland-protocols
+for the pkgdatadir value, which is not suitable for cross-compiling.
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ configure.ac | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index 48cf5cb..5cd2b89 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -221,7 +221,7 @@ PKG_CHECK_MODULES(LIBINPUT_BACKEND, [libinput >= 0.8.0])
+ PKG_CHECK_MODULES(COMPOSITOR, [$COMPOSITOR_MODULES])
+ 
+ PKG_CHECK_MODULES(WAYLAND_PROTOCOLS, [wayland-protocols >= 1.13],
+-		  [ac_wayland_protocols_pkgdatadir=`$PKG_CONFIG --variable=pkgdatadir wayland-protocols`])
++		  [PKG_CHECK_VAR([ac_wayland_protocols_pkgdatadir], [wayland-protocols >= $WAYLAND_PROTOCOLS_REQUIRED], pkgdatadir)])
+ AC_SUBST(WAYLAND_PROTOCOLS_DATADIR, $ac_wayland_protocols_pkgdatadir)
+ 
+ AC_ARG_ENABLE(wayland-compositor, [  --enable-wayland-compositor],,
diff --git a/meta/recipes-graphics/wayland/weston_4.0.0.bb b/meta/recipes-graphics/wayland/weston_4.0.0.bb
index e78b0d9194..c5882d590b 100644
--- a/meta/recipes-graphics/wayland/weston_4.0.0.bb
+++ b/meta/recipes-graphics/wayland/weston_4.0.0.bb
@@ -11,7 +11,8 @@ SRC_URI = "https://wayland.freedesktop.org/releases/${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-use-PKG_CHECK_VAR-for-defining-WAYLAND_PROTOCOLS_DAT.patch \
+           "
 SRC_URI[md5sum] = "33709aa4d5916f89643fca0fc0064b39"
 SRC_URI[sha256sum] = "a0fc0ae7ef83dfbed12abfe9b8096a24a7dd00705e86fa0db1e619ded18b4b58"
 
@@ -35,6 +36,8 @@ EXTRA_OECONF_append_qemux86 = "\
 EXTRA_OECONF_append_qemux86-64 = "\
 		WESTON_NATIVE_BACKEND=fbdev-backend.so \
 		"
+EXTRA_OEMAKE += "WAYLAND_PROTOCOLS_DATADIR=${STAGING_DATADIR}/wayland-protocols"
+
 PACKAGECONFIG ??= "${@bb.utils.contains('DISTRO_FEATURES', 'wayland', 'kms fbdev wayland egl', '', d)} \
                    ${@bb.utils.contains('DISTRO_FEATURES', 'x11 wayland', 'xwayland', '', d)} \
                    ${@bb.utils.filter('DISTRO_FEATURES', 'pam systemd x11', d)} \
-- 
2.18.0