Index: head/math/gh-bc/Makefile
===================================================================
--- head/math/gh-bc/Makefile	(revision 517262)
+++ head/math/gh-bc/Makefile	(revision 517263)
@@ -1,37 +1,46 @@
 # $FreeBSD$
 
 PORTNAME=	bc
-PORTVERSION=	2.1.0
+PORTVERSION=	2.3.0
 CATEGORIES=	math
 PKGNAMEPREFIX=	gh-
 
 MAINTAINER=	se@FreeBSD.org
 COMMENT=	GNU compatible bc/dc calculator
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
+USES=		compiler
 USE_GITHUB=	yes
 GH_ACCOUNT=	gavinhoward
 
 HAS_CONFIGURE=	yes
 CONFIGURE_SCRIPT=	configure.sh
 CONFIGURE_ARGS=	-G
+
+.include <bsd.port.pre.mk>
+
+.if ${CHOSEN_COMPILER_TYPE} == gcc && ${COMPILER_VERSION} <= 42
 CFLAGS+=	--std=c99
+.endif
 
 CONFLICTS_INSTALL=	gnubc-[0-9]*
 
+pre-build:
+		${INSTALL_SCRIPT} ${WRKSRC}/gen/strgen.sh ${WRKSRC}/gen/strgen
+
 do-install:
 		${INSTALL_PROGRAM} ${WRKSRC}/bin/bc ${STAGEDIR}${PREFIX}/bin/
 		${LN} ${STAGEDIR}${PREFIX}/bin/bc ${STAGEDIR}${PREFIX}/bin/dc
 		${INSTALL_MAN} ${WRKSRC}/manuals/bc.1 ${STAGEDIR}${MANPREFIX}/man/man1
 		${INSTALL_MAN} ${WRKSRC}/manuals/dc.1 ${STAGEDIR}${MANPREFIX}/man/man1
 		${MKDIR} ${STAGEDIR}${PREFIX}/share/nls/C
 		${WRKSRC}/locale_install.sh ${STAGEDIR}${PREFIX}/share/nls/%L/%N.cat ${PORTNAME}
 		${MV} ${STAGEDIR}${PREFIX}/share/nls/en_US/bc.cat ${STAGEDIR}${PREFIX}/share/nls/C/
 		${RMDIR} ${STAGEDIR}${PREFIX}/share/nls/en_US
 
 do-test:
 		${MAKE} -C ${WRKSRC} test
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>
Index: head/math/gh-bc/distinfo
===================================================================
--- head/math/gh-bc/distinfo	(revision 517262)
+++ head/math/gh-bc/distinfo	(revision 517263)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1562335308
-SHA256 (gavinhoward-bc-2.1.0_GH0.tar.gz) = bc39c11cd91d2df079f9d7a7bae90f681cfe055b7ad58010c11020625bf1d8a9
-SIZE (gavinhoward-bc-2.1.0_GH0.tar.gz) = 237162
+TIMESTAMP = 1573478768
+SHA256 (gavinhoward-bc-2.3.0_GH0.tar.gz) = c3d6d86e8ffc3c6b657d0ca1a02c4499d760aa869ba9ff813c83f731493ee8e8
+SIZE (gavinhoward-bc-2.3.0_GH0.tar.gz) = 241071
Index: head/math/gh-bc/files/patch-locale__install.sh
===================================================================
--- head/math/gh-bc/files/patch-locale__install.sh	(revision 517262)
+++ head/math/gh-bc/files/patch-locale__install.sh	(revision 517263)
@@ -1,20 +1,27 @@
---- locale_install.sh.orig	2019-05-29 01:32:06 UTC
+--- locale_install.sh.orig	2019-11-09 19:04:17 UTC
 +++ locale_install.sh
-@@ -114,6 +114,7 @@ for file in $locales_dir/*.msg; do
+@@ -193,6 +193,7 @@ for file in $locales_dir/*.msg; do
  		continue
  	fi
  
 +	echo gencatfile "$loc" "$file"
  	gencatfile "$loc" "$file"
  
  done
-@@ -143,7 +144,8 @@ for file in $locales_dir/*.msg; do
+@@ -217,14 +218,13 @@ for file in $locales_dir/*.msg; do
+ 		linkdir=$(dirname "$file")
+ 		locale=$(basename "$link" .msg)
+ 		linksrc=$(gen_nlspath "$nlspath" "$locale" "$main_exec")
+-		relloc="${loc##$destdir/}"
+-		rel=$(relpath "$linksrc" "$relloc")
+ 
+ 		if [ ! -f "$destdir/$linksrc" ]; then
  			gencatfile "$destdir/$linksrc" "$linkdir/$link"
  		fi
  
--		ln -s "$linksrc" "$loc"
+-		ln -fs "$rel" "$loc"
 +		echo ln "$linksrc" "$loc"
 +		ln "$linksrc" "$loc"
  	fi
  
  done