Index: head/math/z3/Makefile
===================================================================
--- head/math/z3/Makefile	(revision 512540)
+++ head/math/z3/Makefile	(revision 512541)
@@ -1,47 +1,46 @@
 # $FreeBSD$
 
 PORTNAME=	z3
-DISTVERSIONPREFIX=	Z3-
-DISTVERSION=	4.8.5
-PORTREVISION=	1
+DISTVERSIONPREFIX=	z3-
+DISTVERSION=	4.8.6
 CATEGORIES=	math
 
 MAINTAINER=	arrowd@FreeBSD.org
 COMMENT=	Z3 Theorem Prover
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 USES=		compiler:c++11-lang python:2.7,build
 USE_GITHUB=	yes
 GH_ACCOUNT=	Z3Prover
 
 HAS_CONFIGURE=		yes
 CONFIGURE_ARGS=		--prefix=${PREFIX}
 USE_LDCONFIG=		yes
 
 OPTIONS_DEFINE=		DEBUG STATIC GMP
 
 OPTIONS_DEFAULT=	STATIC
 OPTIONS_SUB=		yes
 
 DEBUG_CONFIGURE_ON=	--debug
 
 STATIC_DESC=		Build static z3 library
 STATIC_CONFIGURE_ON=	--staticlib
 
 GMP_DESC=		Use GMP library for AP arithmetic
 GMP_CONFIGURE_ON=	--gmp
 GMP_USES=		localbase:ldflags
 GMP_LIB_DEPENDS=	libgmp.so:math/gmp
 
 LDFLAGS_i386=		-Wl,-znotext
 BUILD_WRKSRC=		${WRKSRC}/build
 INSTALL_WRKSRC=		${WRKSRC}/build
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/z3
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/libz3.so
 	${LN} -s libz3.so ${STAGEDIR}${PREFIX}/lib/libz3.so.0
 
 .include <bsd.port.mk>
Index: head/math/z3/distinfo
===================================================================
--- head/math/z3/distinfo	(revision 512540)
+++ head/math/z3/distinfo	(revision 512541)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1561572798
-SHA256 (Z3Prover-z3-Z3-4.8.5_GH0.tar.gz) = 4e8e232887ddfa643adb6a30dcd3743cb2fa6591735fbd302b49f7028cdc0363
-SIZE (Z3Prover-z3-Z3-4.8.5_GH0.tar.gz) = 4177051
+TIMESTAMP = 1569096483
+SHA256 (Z3Prover-z3-z3-4.8.6_GH0.tar.gz) = 37922fa5085170cad6504498d9758fb63c61d5cb5b68689c11a6c5e84f0311b3
+SIZE (Z3Prover-z3-z3-4.8.6_GH0.tar.gz) = 4328752
Index: head/math/z3/files/patch-scripts_mk__util.py
===================================================================
--- head/math/z3/files/patch-scripts_mk__util.py	(revision 512540)
+++ head/math/z3/files/patch-scripts_mk__util.py	(revision 512541)
@@ -1,20 +1,13 @@
---- scripts/mk_util.py.orig	2017-12-18 14:18:30 UTC
+--- scripts/mk_util.py.orig	2019-09-19 23:43:06 UTC
 +++ scripts/mk_util.py
-@@ -49,7 +49,7 @@ C_COMPILERS=['gcc', 'clang']
- CSC_COMPILERS=['csc', 'mcs']
- JAVAC=None
- JAR=None
--PYTHON_PACKAGE_DIR=distutils.sysconfig.get_python_lib()
-+PYTHON_PACKAGE_DIR=distutils.sysconfig.get_python_lib(prefix=getenv("PREFIX", None))
- BUILD_DIR='build'
- REV_BUILD_DIR='..'
- SRC_DIR='src'
-@@ -2441,7 +2441,7 @@ def mk_config():
+@@ -2508,8 +2508,8 @@ def mk_config():
          check_ar()
          CXX = find_cxx_compiler()
          CC  = find_c_compiler()
 -        SLIBEXTRAFLAGS = ''
+-#       SLIBEXTRAFLAGS = '%s -Wl,-soname,libz3.so.0' % LDFLAGS
++#       SLIBEXTRAFLAGS = ''
 +        SLIBEXTRAFLAGS = '%s -Wl,-soname,libz3.so.0' % LDFLAGS
          EXE_EXT = ''
          LIB_EXT = '.a'
          if GPROF: