Merge pull request #474 from mroi/patch-1

[SR-10559] libdispatch fails to build with _FORTIFY_SOURCE=2

Signed-off-by: Kim Topley <[email protected]>

Author: ktopley-apple

PATCHES

@@ -492,3 +492,4 @@ github commits starting with 29bdc2f from
 [e5ba042] APPLIED rdar://54572081
 [a3bff44] APPLIED rdar://54572081
 [2e3d5c0] APPLIED rdar://54572081
+[1482ec9] APPLIED rdar://54572081