Index: head/lib/libgcc_s/Makefile
===================================================================
--- head/lib/libgcc_s/Makefile	(revision 316100)
+++ head/lib/libgcc_s/Makefile	(revision 316101)
@@ -1,35 +1,39 @@
 # $FreeBSD$
 
 PACKAGE=	clibs
 SHLIB_NAME=	libgcc_s.so.1
 SHLIBDIR?=	/lib
 
 MK_SSP=		no
 WARNS?=	2
 
 LDFLAGS+=	-nodefaultlibs
 LIBADD+=	c
 VERSION_MAP=	${.CURDIR}/Version.map
 
 .include "../libcompiler_rt/Makefile.inc"
 .include "../libgcc_eh/Makefile.inc"
 
+# gcc has incompatible internal declarations for __divtc3 and __multc3, but has
+# no option to silence its warning, so make warnings non-fatal.
+NO_WERROR.gcc=
+
 LIBCSRCDIR=	${SRCTOP}/lib/libc
 LIBMSRCDIR=	${SRCTOP}/lib/msun/src
 CFLAGS+=	-I${LIBCSRCDIR}/include -I${LIBCSRCDIR}/${MACHINE_CPUARCH}
 CFLAGS+=	-I${LIBMSRCDIR}
 .PATH:		${LIBMSRCDIR}
 SRCS+=		s_fabs.c
 SRCS+=		s_fabsf.c
 SRCS+=		s_fabsl.c
 SRCS+=		s_fmax.c
 SRCS+=		s_fmaxf.c
 SRCS+=		s_fmaxl.c
 SRCS+=		s_logb.c
 SRCS+=		s_logbf.c
 SRCS+=		s_logbl.c
 SRCS+=		s_scalbn.c
 SRCS+=		s_scalbnf.c
 SRCS+=		s_scalbnl.c
 
 .include <bsd.lib.mk>