diff -ruN libgit2.orig/Makefile libgit2/Makefile
--- libgit2.orig/Makefile	2014-09-29 18:09:10.000000000 +0400
+++ libgit2/Makefile	2014-12-21 10:20:25.000000000 +0400
@@ -1,32 +1,36 @@
 # $FreeBSD: head/devel/libgit2/Makefile 369517 2014-09-29 14:09:10Z wg $
 
 PORTNAME=	libgit2
-PORTVERSION=	0.21.1
+PORTVERSION=	0.21.3
 CATEGORIES=	devel
 
 MAINTAINER=	wg@FreeBSD.org
 COMMENT=	Portable, pure C implementation of the Git core
 
 LICENSE=	GPLv2
+LICENSE_FILE=	${WRKSRC}/COPYING
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	libgit2
 GH_TAGNAME=	v${PORTVERSION}
-GH_COMMIT=	b4d00c1
+GH_COMMIT=	e476e7b
 
 USES=		cmake python:build
 USE_LDCONFIG=	yes
 USE_OPENSSL=	yes
 
-PLIST_SUB=	SHLIB_VER=${PORTVERSION:R:E}
+PLIST_SUB=	PORTVERSION=${PORTVERSION} SHLIB_VER=${PORTVERSION:R:E}
 
-OPTIONS_DEFINE=	SSH
-OPTIONS_DEFAULT=SSH
+OPTIONS_DEFINE=	SSH THREADSAFE
+OPTIONS_DEFAULT=SSH THREADSAFE
 SSH_DESC=	Enable SSH support through libssh2
+THREADSAFE_DESC=	Build ${PORTNAME} as threadsafe
 
 SSH_LIB_DEPENDS=	libssh2.so:${PORTSDIR}/security/libssh2
 SSH_CMAKE_ON=		-DUSE_SSH=ON
 SSH_CMAKE_OFF=		-DUSE_SSH=OFF
+THREADSAFE_CMAKE_ON=	-DTHREADSAFE=ON
+THREADSAFE_CMAKE_OFF=	-DTHREADSAFE=OFF
 
 .include <bsd.port.pre.mk>
 
diff -ruN libgit2.orig/distinfo libgit2/distinfo
--- libgit2.orig/distinfo	2014-09-29 18:09:10.000000000 +0400
+++ libgit2/distinfo	2014-12-21 09:56:15.000000000 +0400
@@ -1,2 +1,2 @@
-SHA256 (libgit2-0.21.1.tar.gz) = 7faed833d59890ca11957610e020aef3d91e56027408e956d5eb3c9f35dbcb29
-SIZE (libgit2-0.21.1.tar.gz) = 3428317
+SHA256 (libgit2-0.21.3.tar.gz) = 5c1b2276a54fd2bb2bd02f4721c53c98b8b218c6f6dbec05a94b46a0db2893be
+SIZE (libgit2-0.21.3.tar.gz) = 3456471
diff -ruN libgit2.orig/pkg-plist libgit2/pkg-plist
--- libgit2.orig/pkg-plist	2014-10-27 14:40:06.000000000 +0400
+++ libgit2/pkg-plist	2014-12-21 10:10:06.000000000 +0400
@@ -66,6 +66,6 @@
 include/git2/sys/refs.h
 include/git2/sys/repository.h
 lib/libgit2.so
-lib/libgit2.so.0.%%SHLIB_VER%%.0
+lib/libgit2.so.%%PORTVERSION%%
 lib/libgit2.so.%%SHLIB_VER%%
 libdata/pkgconfig/libgit2.pc