Diff mode was set to SVN, but /home/rob/ports/devel/oniguruma5 is not a svn working copy.
Trying /usr/ports ... found
===> Generating patch
===> Viewing diff with more
diff -ruN /usr/ports/devel/oniguruma5/Makefile ./Makefile
--- /usr/ports/devel/oniguruma5/Makefile	2015-01-19 06:03:34.000000000 -0800
+++ ./Makefile	2015-12-14 07:30:56.800523665 -0800
@@ -3,13 +3,13 @@
 
 PORTNAME=	oniguruma
 PORTVERSION=	5.9.6
+DISTVERSIONPREFIX=	v
 CATEGORIES=	devel textproc
-MASTER_SITES=	http://www.geocities.jp/kosako3/oniguruma/archive/
 PKGNAMESUFFIX=	5
 DISTNAME=	onig-${PORTVERSION}
 DIST_SUBDIR=	ruby
 
-MAINTAINER=	ports@FreeBSD.org
+MAINTAINER=	rob@theseusnetworking.com
 COMMENT=	BSDL Regular Expressions library compatible with POSIX/GNU/Perl
 
 LICENSE=	BSD2CLAUSE
@@ -19,7 +19,11 @@
 
 CONFLICTS=	oniguruma-2.*
 
-USES=		libtool pathfix
+USE_GITHUB=	yes
+GH_ACCOUNT=	kkos
+
+USES=		pathfix autoreconf libtool
+PATHFIX_MAKEFILEIN=	Makefile.am
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 USE_LDCONFIG=	yes
@@ -29,7 +33,7 @@
 post-patch:
 	@${REINPLACE_CMD} -e \
 		'/^INCLUDES/s|$$(includedir)|| ; \
-		 s|$$(<)|$$(@).in|' ${WRKSRC}/Makefile.in
+		 s|$$(<)|$$(@).in|' ${WRKSRC}/Makefile.am
 
 post-install:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
diff -ruN /usr/ports/devel/oniguruma5/distinfo ./distinfo
--- /usr/ports/devel/oniguruma5/distinfo	2015-01-19 06:03:34.000000000 -0800
+++ ./distinfo	2015-12-13 20:31:42.025036838 -0800
@@ -1,2 +1,2 @@
-SHA256 (ruby/onig-5.9.6.tar.gz) = d5642010336a6f68b7f2e34b1f1cb14be333e4d95c2ac02b38c162caf44e47a7
-SIZE (ruby/onig-5.9.6.tar.gz) = 588225
+SHA256 (ruby/onig-5.9.6_GH0.tar.gz) = 0746ee6b889f9afe2fc0bf7cb9f21d7847821bbdf07bc938a3a5dfb3f91cc0d5
+SIZE (ruby/onig-5.9.6_GH0.tar.gz) = 325378
====> Cleaning up
===> Done