glib-2.0: Fix build with clang compiler

(From OE-Core rev: 0ad21fe63f6873805762880cca4c37dbe71ee473)

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

meta/recipes-core/glib-2.0/glib-2.0/0001-meson-Run-atomics-test-on-clang-as-well.patch

@@ -0,0 +1,31 @@
+From cce617bec254e327ed7bcad60f58208024c6dc42 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sat, 12 Oct 2019 17:46:26 -0700
+Subject: [PATCH] meson: Run atomics test on clang as well
+
+Fixes
+./glib-2.62.1/glib/gatomic.c:675:2: error: G_ATOMIC_LOCK_FREE defined, but incapable of lock-free atomics.
+^
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ meson.build | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/meson.build b/meson.build
+index 9731de4..c678931 100644
+--- a/meson.build
++++ b/meson.build
+@@ -1634,7 +1634,7 @@ atomicdefine = '''
+ # We know that we can always use real ("lock free") atomic operations with MSVC
+ if cc.get_id() == 'msvc' or cc.get_id() == 'clang-cl' or cc.links(atomictest, name : 'atomic ops')
+   have_atomic_lock_free = true
+-  if cc.get_id() == 'gcc' and not cc.compiles(atomicdefine, name : 'atomic ops define')
++  if (cc.get_id() == 'gcc' or cc.get_id() == 'clang') and not cc.compiles(atomicdefine, name : 'atomic ops define')
+     # Old gcc release may provide
+     # __sync_bool_compare_and_swap but doesn't define
+     # __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
+-- 
+2.23.0
+

meta/recipes-core/glib-2.0/glib-2.0_2.62.1.bb

@@ -14,6 +14,7 @@ SRC_URI = "${GNOME_MIRROR}/glib/${SHRT_VER}/glib-${PV}.tar.xz \
            file://0010-Do-not-hardcode-python-path-into-various-tools.patch \
            file://0001-Set-host_machine-correctly-when-building-with-mingw3.patch \
            file://0001-Do-not-write-bindir-into-pkg-config-files.patch \
+           file://0001-meson-Run-atomics-test-on-clang-as-well.patch \
            "
 
 SRC_URI_append_class-native = " file://relocate-modules.patch"