Upgrade to 1.3.

Changelog at
<https://sites.math.rutgers.edu/~asbuch/lrcalc/lrcalc-1.3/ChangeLog>.

math/lrcalc/Makefile

@@ -2,8 +2,7 @@
 # $FreeBSD$
 
 PORTNAME=	lrcalc
-PORTVERSION=	1.2
-PORTREVISION=	1
+PORTVERSION=	1.3
 CATEGORIES=	math
 MASTER_SITES=	https://sites.math.rutgers.edu/~asbuch/lrcalc/
 
@@ -12,19 +11,11 @@ COMMENT=	Littlewood-Richardson Calculator
 
 LICENSE=	GPLv2+
 
-USES=		libtool
+USES=		autoreconf libtool
 
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 
-INCL2FIX=	lrcalc.c maple.c schublib.h symfcn.c symfcn.h
-
 TEST_TARGET=	check
 
-pre-configure:
-.for i in ${INCL2FIX}
-	${REINPLACE_CMD} -e 's|<vectarg.h>|"vectarg.h"|;s|<vector.h>|"vector.h"|'	\
-		-e 's|<hashtab.h>|"hashtab.h"|;s|<alloc.h>|"alloc.h"|' ${WRKSRC}/src/${i}
-.endfor
-
 .include <bsd.port.mk>

math/lrcalc/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1585574070
-SHA256 (lrcalc-1.2.tar.gz) = 792dd538a0d19698be2c5b8c138730bbb4820e8a44e03b001ae14bd5f1d7040b
-SIZE (lrcalc-1.2.tar.gz) = 363120
+TIMESTAMP = 1611495149
+SHA256 (lrcalc-1.3.tar.gz) = 67c5131102b807b1e537da09705a9615cca56b6accae5d5f08afdf1299c72778
+SIZE (lrcalc-1.3.tar.gz) = 275160