smbnetfs: unbreak for musl.

srcpkgs/smbnetfs/patches/musl.patch

@@ -0,0 +1,12 @@
+--- src/common.c.orig	2016-05-02 09:54:28.645785781 +0200
++++ src/common.c	2016-05-02 09:55:05.902151290 +0200
+@@ -4,7 +4,9 @@
+ #include <stdarg.h>
+ #include <string.h>
+ #include <pthread.h>
++#ifdef HAVE_BACKTRACE
+ #include <execinfo.h>
++#endif
+ #include <errno.h>
+ #include <glib.h>
+ 

srcpkgs/smbnetfs/template

@@ -1,7 +1,7 @@
 # Template file for 'smbnetfs'
 pkgname=smbnetfs
 version=0.6.0
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--without-gnome-keyring"
 hostmakedepends="pkg-config"