Index: head/math/exprtk/Makefile
===================================================================
--- head/math/exprtk/Makefile	(revision 516123)
+++ head/math/exprtk/Makefile	(revision 516124)
@@ -1,27 +1,27 @@
 # $FreeBSD$
 
 PORTNAME=	exprtk
-DISTVERSION=	g20190906
+DISTVERSION=	g20191022
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C++ mathematical expression library
 
 LICENSE=	MIT
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	ArashPartow
-GH_TAGNAME=	3dad7ff
+GH_TAGNAME=	c6a452a
 
 NO_BUILD=	yes
 NO_ARCH=	yes
 
 PLIST_FILES=	include/exprtk.hpp
 
 do-install:
 	${INSTALL_DATA} ${WRKSRC}/exprtk.hpp ${STAGEDIR}${PREFIX}/include
 
 benchmark:
 	cd ${WRKSRC} && ${MAKE_ENV} ${MAKE} ${MAKE_ARGS} pgo
 
 .include <bsd.port.mk>
Index: head/math/exprtk/distinfo
===================================================================
--- head/math/exprtk/distinfo	(revision 516123)
+++ head/math/exprtk/distinfo	(revision 516124)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1569178109
-SHA256 (ArashPartow-exprtk-g20190906-3dad7ff_GH0.tar.gz) = f66a4d60f94dae71c70c55704a7b00c8a14080198701cce7aa62bce68de2cb64
-SIZE (ArashPartow-exprtk-g20190906-3dad7ff_GH0.tar.gz) = 1316449
+TIMESTAMP = 1572472972
+SHA256 (ArashPartow-exprtk-g20191022-c6a452a_GH0.tar.gz) = ed3c6fe0e8940bb6a0ad2e529be2dd7b3f99c6f90434008e510da6bcda7b79f9
+SIZE (ArashPartow-exprtk-g20191022-c6a452a_GH0.tar.gz) = 1317784