Index: astro/gpstk/Makefile
===================================================================
--- astro/gpstk/Makefile
+++ astro/gpstk/Makefile
@@ -2,11 +2,11 @@
 # $FreeBSD$
 
 PORTNAME=	gpstk
-PORTVERSION=	2.12
+PORTVERSION=	3.0.0
 DISTVERSIONPREFIX=	v
 CATEGORIES=	astro devel
 
-MAINTAINER=	ports@FreeBSD.org
+MAINTAINER=	lbartoletti@FreeBSD.org
 COMMENT=	Toolkit for developing GPS applications
 
 LICENSE=	GPLv3 LGPL3
@@ -24,6 +24,9 @@
 
 OPTIONS_DEFINE=	DOCS EXAMPLES
 OPTIONS_SUB=	yes
+
+PLIST_SUB=	PORTVERSION=${PORTVERSION} \
+		SHLIB_VER=${PORTVERSION:R}
 
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
Index: astro/gpstk/distinfo
===================================================================
--- astro/gpstk/distinfo
+++ astro/gpstk/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1566490804
-SHA256 (SGL-UT-GPSTk-v2.12_GH0.tar.gz) = 6977b136ff6639c7771c7eb2164bfaef101b7a706ddf281cc203f325ede3fc3c
-SIZE (SGL-UT-GPSTk-v2.12_GH0.tar.gz) = 128885846
+TIMESTAMP = 1586777913
+SHA256 (SGL-UT-GPSTk-v3.0.0_GH0.tar.gz) = fe45c79537d263eb145623c456a0d0bf79acd0ac8dd79136d6b5610aa26055e4
+SIZE (SGL-UT-GPSTk-v3.0.0_GH0.tar.gz) = 128460479
Index: astro/gpstk/pkg-plist
===================================================================
--- astro/gpstk/pkg-plist
+++ astro/gpstk/pkg-plist
@@ -246,8 +246,8 @@
 include/gpstk/singleton.hpp
 include/gpstk/stl_helpers.hpp
 lib/libgpstk.so
-lib/libgpstk.so.2.12
-lib/libgpstk.so.2.12.0
+lib/libgpstk.so.%%SHLIB_VER%%
+lib/libgpstk.so.%%PORTVERSION%%
 share/cmake/GPSTK/GPSTKConfig.cmake
 share/cmake/GPSTK/GPSTKConfigVersion.cmake
 share/cmake/GPSTK/GPSTKTargets-%%CMAKE_BUILD_TYPE%%.cmake