Index: math/z3/Makefile
===================================================================
--- math/z3/Makefile
+++ math/z3/Makefile
@@ -2,8 +2,7 @@
 
 PORTNAME=	z3
 DISTVERSIONPREFIX=	${PORTNAME}-
-DISTVERSION=	4.7.1
-PORTREVISION=	1
+DISTVERSION=	4.8.3
 CATEGORIES=	math
 
 MAINTAINER=	arrowd@FreeBSD.org
@@ -28,8 +27,7 @@
 
 GMP_DESC=		Use GMP library for AP arithmetic
 GMP_CONFIGURE_ON=	--gmp
-GMP_CXXFLAGS=		-I${LOCALBASE}/include
-GMP_LDFLAGS=		-L${LOCALBASE}/lib
+GMP_USES=		localbase:ldflags
 GMP_LIB_DEPENDS=	libgmp.so:math/gmp
 
 HAS_CONFIGURE=		yes
Index: math/z3/distinfo
===================================================================
--- math/z3/distinfo
+++ math/z3/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1529241358
-SHA256 (Z3Prover-z3-z3-4.7.1_GH0.tar.gz) = a353e3da00cdaffd258052cc1406efc854606855222ab4bfd5679c58af5c11c7
-SIZE (Z3Prover-z3-z3-4.7.1_GH0.tar.gz) = 4015416
+TIMESTAMP = 1542720512
+SHA256 (Z3Prover-z3-z3-4.8.3_GH0.tar.gz) = 21620b68c373cdea0d3b2cf24020be4ecfb22eddc6629663f6e9ce31cfdc78de
+SIZE (Z3Prover-z3-z3-4.8.3_GH0.tar.gz) = 4119116
Index: math/z3/pkg-plist
===================================================================
--- math/z3/pkg-plist
+++ math/z3/pkg-plist
@@ -6,13 +6,13 @@
 include/z3_ast_containers.h
 include/z3_fixedpoint.h
 include/z3_fpa.h
-include/z3_interp.h
 include/z3_macros.h
 include/z3_optimization.h
 include/z3_polynomial.h
 include/z3_rcf.h
 include/z3_spacer.h
 include/z3_v1.h
+include/z3_version.h
 %%STATIC%%lib/libz3.a
 lib/libz3.so
 lib/libz3.so.0