diff -urN graphics/linux-c7-png12.old/Makefile graphics/linux-c7-png12/Makefile
--- graphics/linux-c7-png12.old/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ graphics/linux-c7-png12/Makefile	2021-02-02 00:17:19.815200000 +0100
@@ -0,0 +1,27 @@
+# Created by: Tomek CEDRO <tomek@cedro.info>
+# $FreeBSD$
+
+PORTNAME=	libpng12
+PORTVERSION=	1.2.50
+DISTVERSIONSUFFIX=	-10.el7
+PORTREVISION=	0
+CATEGORIES=	graphics linux
+
+MAINTAINER=	emulation@FreeBSD.org
+COMMENT=	Old Library for manipulating PNG images (Linux CentOS ${LINUX_DIST_VER})
+
+LICENSE=	LIBPNG
+LICENSE_NAME=	libpng license
+LICENSE_FILE=	${WRKSRC}/usr/share/doc/${PORTNAME}-${PORTVERSION}/LICENSE
+LICENSE_PERMS=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
+
+USES=		linux:c7
+USE_LDCONFIG=	yes
+USE_LINUX_RPM=	yes
+
+CONFLICTS=	linux-c6-${PORTNAME}-[0-9]*
+DESCR=		${.CURDIR}/../png/pkg-descr
+
+OPTIONS_DEFINE=	DOCS
+
+.include <bsd.port.mk>
diff -urN graphics/linux-c7-png12.old/distinfo graphics/linux-c7-png12/distinfo
--- graphics/linux-c7-png12.old/distinfo	1970-01-01 01:00:00.000000000 +0100
+++ graphics/linux-c7-png12/distinfo	2021-02-02 00:52:05.823723000 +0100
@@ -0,0 +1,7 @@
+TIMESTAMP = 1612223525
+SHA256 (centos/libpng12-1.2.50-10.el7.i686.rpm) = 0c8e51dcd8c2087acc7773f9d27ee9b7fee9d08028a6e6c78f9fc983482af5bd
+SIZE (centos/libpng12-1.2.50-10.el7.i686.rpm) = 178268
+SHA256 (centos/libpng12-1.2.50-10.el7.x86_64.rpm) = 0a3a49a994d4b7d1f4176abde13e41cb9c49274cc5c92fa683de56ed0733dc59
+SIZE (centos/libpng12-1.2.50-10.el7.x86_64.rpm) = 175504
+SHA256 (centos/libpng12-1.2.50-10.el7.src.rpm) = 46b81fe0a17c07b2e1832ad3e4858bf3876dd03a3cc6dc5f7567cdefb8d230a7
+SIZE (centos/libpng12-1.2.50-10.el7.src.rpm) = 675548
diff -urN graphics/linux-c7-png12.old/pkg-plist.amd64 graphics/linux-c7-png12/pkg-plist.amd64
--- graphics/linux-c7-png12.old/pkg-plist.amd64	1970-01-01 01:00:00.000000000 +0100
+++ graphics/linux-c7-png12/pkg-plist.amd64	2021-02-02 01:03:53.703909000 +0100
@@ -0,0 +1,14 @@
+usr/lib/libpng.so.3
+usr/lib/libpng.so.3.50.0
+usr/lib/libpng12.so.0
+usr/lib/libpng12.so.0.50.0
+usr/lib64/libpng.so.3
+usr/lib64/libpng.so.3.50.0
+usr/lib64/libpng12.so.0
+usr/lib64/libpng12.so.0.50.0
+%%PORTDOCS%%%%DOCSDIR%%/CHANGES
+%%PORTDOCS%%%%DOCSDIR%%/LICENSE
+%%PORTDOCS%%%%DOCSDIR%%/README
+%%PORTDOCS%%%%DOCSDIR%%/TODO
+%%PORTDOCS%%%%DOCSDIR%%/libpng-1.2.50.txt
+usr/share/man/man5/png12.5.gz
diff -urN graphics/linux-c7-png12.old/pkg-plist.i386 graphics/linux-c7-png12/pkg-plist.i386
--- graphics/linux-c7-png12.old/pkg-plist.i386	1970-01-01 01:00:00.000000000 +0100
+++ graphics/linux-c7-png12/pkg-plist.i386	2021-02-02 00:23:47.906954000 +0100
@@ -0,0 +1,10 @@
+usr/lib/libpng.so.3
+usr/lib/libpng.so.3.50.0
+usr/lib/libpng12.so.0
+usr/lib/libpng12.so.0.50.0
+%%PORTDOCS%%%%DOCSDIR%%/CHANGES
+%%PORTDOCS%%%%DOCSDIR%%/LICENSE
+%%PORTDOCS%%%%DOCSDIR%%/README
+%%PORTDOCS%%%%DOCSDIR%%/TODO
+%%PORTDOCS%%%%DOCSDIR%%/libpng-1.2.50.txt
+usr/share/man/man5/png12.5.gz