+ Fix PR47558 by linking against libSystem ahead of libgcc_ext. */
+#undef LINK_GCC_C_SEQUENCE_SPEC
+#define LINK_GCC_C_SEQUENCE_SPEC \
+"%:version-compare(>= 10.6 mmacosx-version-min= -no_compact_unwind) \
+ %{!static:%{!static-libgcc: \
+ %:version-compare(>= 10.6 mmacosx-version-min= -lSystem) } } %G %L"