Index: head/math/opensolaris-libm/Makefile
===================================================================
--- head/math/opensolaris-libm/Makefile	(revision 432947)
+++ head/math/opensolaris-libm/Makefile	(revision 432948)
@@ -1,65 +1,57 @@
 # Created by: John Marino <marino@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	opensolaris-libm
 PORTVERSION=	2006.01.31
 DISTVERSIONPREFIX=	v
 CATEGORIES=	math
 
 MAINTAINER=	marino@FreeBSD.org
 COMMENT=	C99 Math and vector libraries from OpenSolaris snv_33
 
 LICENSE=	CDDL
 LICENSE_FILE=	${WRKSRC}/usr/src/OPENSOLARIS.LICENSE
 
 ONLY_FOR_ARCHS=	amd64	# i386 and sparc possible with much work
 PORTSCOUT=	ignore:1
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	jrmarino
-GH_TAGNAME=	2017.01.24
+GH_TAGNAME=	2017.01.31
 
 BUILD_WRKSRC=	${WRKSRC}/usr/src/libm/wos64
 INSTALL_WRKSRC=	${WRKSRC}/usr/src/libm/wos64
 MAKEFILE=	Makefile.bsd
 MAKE_ENV=	ARCH=${ARCH} USE_ASSEMBLY_VERSIONS=yes
 
-# On FreeBSD 11+, libm will build on base clang.  Using OpenLibm testsuite,
-# all float tests pass on both clang and gcc.  On the "double" tests, all
-# tests pass when built by gcc save 4 gamma tests off by 1e-16, also seen
-# on Illumos.  However, on Clang and gcc with -fno-builtin set, 27 other
-# tests fail with results off by values ranging from e-17 to e-14.  All of
-# these extremely slightly inaccurate results seem to be caused by the j0
-# Bessel function implementation.  Fix that and likely all 27 tests
-# involving j0, j1, jn, y0, y1, yn pass.
-
+# On FreeBSD 11+, libm will build on base clang.
 # On FreeBSD 10, the base clang (v3.4) cannot even build libm without emitting
 # Internal Compiler Errors, so GCC is required and does not appear as an
 # option.  Similarly, the GCC option does not appear on DragonFly as the
 # base compiler is already GCC.  Programs compiled with GCC that link to
 # these libraries require that the libraries are compiled with GCC for
 # proper functioning.
 
 OPTIONS_DEFINE=			GCC
 OPTIONS_EXCLUDE_FreeBSD_10=	GCC
 OPTIONS_EXCLUDE_DragonFly=	GCC
 
 GCC_USE=	GCC=yes
 
 .include <bsd.port.options.mk>
 
 .if ${OPSYS} == FreeBSD
 . if ${OSREL:R} < 11
 USE_GCC=	yes
 . endif
 
 RUN_DEPENDS=	${LOCALBASE}/bin/addr2line:devel/binutils
 
 post-patch:
 	# The addr2line program in FreeBSD is inadequate, so pull in
 	# binutils on FreeBSD
 	@${REINPLACE_CMD} -e 's|/usr/bin|/usr/local/bin|' \
 		${WRKSRC}/usr/src/libm/src/m9x/__traceback.c
 .endif
 
 .include <bsd.port.mk>
Index: head/math/opensolaris-libm/distinfo
===================================================================
--- head/math/opensolaris-libm/distinfo	(revision 432947)
+++ head/math/opensolaris-libm/distinfo	(revision 432948)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1485190474
-SHA256 (jrmarino-opensolaris-libm-v2006.01.31-2017.01.24_GH0.tar.gz) = c063cbc7db749b7c87455964dfa6ead7808108f9c991cede192f2ee108fced80
-SIZE (jrmarino-opensolaris-libm-v2006.01.31-2017.01.24_GH0.tar.gz) = 985294
+TIMESTAMP = 1485870843
+SHA256 (jrmarino-opensolaris-libm-v2006.01.31-2017.01.31_GH0.tar.gz) = 42ef6a57674237dd9822c76bf799ff51d58a69a9c726bd6801be37f916a6afa1
+SIZE (jrmarino-opensolaris-libm-v2006.01.31-2017.01.31_GH0.tar.gz) = 985592