gvfs: explicitly specify samba include and library paths

The gvfs configure script has --with-samba-includes and
--with-samba-libs options. Use these to point it to the
libsmbclient files in the staging dir.

Signed-off-by: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/gvfs/gvfs.mk

@@ -63,6 +63,8 @@ ifeq ($(BR2_PACKAGE_SAMBA_LIBSMBCLIENT),y)
 GVFS_DEPENDENCIES += samba
 GVFS_CONF_OPT += \
 	--enable-samba \
+	--with-samba-includes=$(STAGING_DIR)/usr/include \
+	--with-samba-libs=$(STAGING_DIR)/usr/lib \
 	ac_cv_lib_smbclient_smbc_option_get=yes
 else
 GVFS_CONF_OPT += --disable-samba