[gnome-continuous-yocto/gnomeostree-3.28-rocko: 6185/8267] mesa: Add define to indicate missing 64bit atomics on armv5

[Emmanuele Bassi <ebassi src gnome org>]

commit 53918ce80a246df30fe48231b86422c92b1de960
Author: Khem Raj <raj khem gmail com>
Date:   Tue Jun 6 10:13:46 2017 -0700

    mesa: Add define to indicate missing 64bit atomics on armv5
    
    This is wrongly detected by configure since it only checks for
    __sync_add_and_fetch and not __atomic_fetch_add, it decides
    to let compiler emit references to atomic functions which
    it expects to be provided by libgcc, but thats not the
    case for armv5 arch
    
    [YOCTO #11616]
    
    (From OE-Core rev: 6866ad53c5d49781002470195b4aae1ad1afde5c)
    
    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/mesa/mesa.inc |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/meta/recipes-graphics/mesa/mesa.inc b/meta/recipes-graphics/mesa/mesa.inc
index 67039a9..014044f 100644
--- a/meta/recipes-graphics/mesa/mesa.inc
+++ b/meta/recipes-graphics/mesa/mesa.inc
@@ -79,6 +79,8 @@ PACKAGECONFIG[unwind] = "--enable-libunwind,--disable-libunwind,libunwind"
 # llvmpipe is slow if compiled with -fomit-frame-pointer (e.g. -O2)
 FULL_OPTIMIZATION_append = " -fno-omit-frame-pointer"
 
+CFLAGS_append_armv5 = " -DMISSING_64BIT_ATOMICS"
+
 # Multiple virtual/gl providers being built breaks staging
 EXCLUDE_FROM_WORLD = "1"