D45891.id140617.diff
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	diff --git a/lib/libthr/Makefile b/lib/libthr/Makefile
	--- a/lib/libthr/Makefile
	+++ b/lib/libthr/Makefile
	@@ -32,6 +32,10 @@

	CFLAGS.thr_stack.c+= -Wno-cast-align
	CFLAGS.rtld_malloc.c+= -Wno-cast-align
	+# Disable compiler builtins so that the compiler does not optimize away rtld's
	+# attempts to force early PLT resolution for certain functions that may be
	+# replaced by builtins.
	+CFLAGS.thr_rtld.c+= -fno-builtin
	CFLAGS.thr_symbols.c+= -Wno-missing-variable-declarations
	.if ${MK_ASAN} != "no"
	# False-positive ASAN error claiming the local "struct sigaction act;" is