libxcb: Add a workaround for gcc5 bug on mips

This fixes build failure for libxcb on mips

(From OE-Core rev: cad52140997e86c6fee4938369dfce21767f1a63)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/xorg-lib/libxcb/gcc-mips-pr68302-mips-workaround.patch

@@ -0,0 +1,22 @@
+Reduce debug info for xcb.c since on mips we run into a gcc5 bug
+
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68302
+
+This patch is a workaround to get past the gcc bug until its resolved.
+it should have minimal impact on libxcb while make it work.
+
+Upstream-Status: Inappropriate [OE-Specific]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Index: libxcb-1.11.1/src/Makefile.am
+===================================================================
+--- libxcb-1.11.1.orig/src/Makefile.am
++++ libxcb-1.11.1/src/Makefile.am
+@@ -188,6 +188,7 @@ EXTSOURCES += xkb.c
+ if BUILD_XKB
+ lib_LTLIBRARIES += libxcb-xkb.la
+ libxcb_xkb_la_LDFLAGS = -version-info 1:0:0 -no-undefined
++CFLAGS += -g1
+ libxcb_xkb_la_LIBADD = $(XCB_LIBS)
+ nodist_libxcb_xkb_la_SOURCES = xkb.c xkb.h
+ endif

meta/recipes-graphics/xorg-lib/libxcb_1.11.1.bb

@@ -11,7 +11,9 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=d763b081cb10c223435b01e00dc0aba7"
 
 SRC_URI = "http://xcb.freedesktop.org/dist/libxcb-${PV}.tar.bz2 \
            file://xcbincludedir.patch \
-           file://disable-check.patch"
+           file://disable-check.patch \
+           file://gcc-mips-pr68302-mips-workaround.patch \
+          "
 SRC_URI[md5sum] = "f97a65e6158775de518ac391935634c2"
 SRC_URI[sha256sum] = "b720fd6c7d200e5371affdb3f049cc8f88cff9aed942ff1b824d95eedbf69d30"