main/claws-mail: fix segfault for gnutls-3.1.3

main/claws-mail/APKBUILD

@@ -1,7 +1,7 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=claws-mail
 pkgver=3.8.1
-pkgrel=2
+pkgrel=3
 pkgdesc="A GTK+ based e-mail client."
 url="http://www.claws-mail.org"
 arch="all"
@@ -19,6 +19,7 @@ depends=
 install=
 source="http://downloads.sourceforge.net/sourceforge/sylpheed-claws/$pkgname-$pkgver.tar.bz2
 	libc-version.patch
+	gnutls313.patch
 	"
 
 _builddir="$srcdir"/$pkgname-$pkgver
@@ -89,4 +90,5 @@ smime() {
 }
 
 md5sums="d388929fb1c8f04d4bcb2139faaf9e70  claws-mail-3.8.1.tar.bz2
-f3416743b5d8ff97b5a3cc2f7efc2dc1  libc-version.patch"
+f3416743b5d8ff97b5a3cc2f7efc2dc1  libc-version.patch
+21bdc9d324f9424e0071bb73be169977  gnutls313.patch"

main/claws-mail/gnutls313.patch

@@ -0,0 +1,12 @@
+diff --git a/src/common/ssl_certificate.c b/src/common/ssl_certificate.c
+index efc5c53..8303f3e 100644
+--- a/src/common/ssl_certificate.c
++++ b/src/common/ssl_certificate.c
+@@ -92,6 +92,7 @@
+     size_t size;
+     gnutls_datum tmp;
+     gnutls_x509_crt dest;
++    size = 0;
+     
+     if (gnutls_x509_crt_init(&dest) != 0) {
+     	g_warning("couldn't gnutls_x509_crt_init\n");