package/libglib2: add -Dxattr=true when libselinux is selected

Xattrs is required for SELinux. Explicitly enable the feature when the
libselinux package is selected.

Signed-off-by: Adam Duskett <aduskett@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/libglib2/libglib2.mk

@@ -77,10 +77,10 @@ LIBGLIB2_DEPENDENCIES += libiconv
 endif
 
 ifeq ($(BR2_PACKAGE_LIBSELINUX),y)
-LIBGLIB2_CONF_OPTS += -Dselinux=enabled
+LIBGLIB2_CONF_OPTS += -Dselinux=enabled -Dxattr=true
 LIBGLIB2_DEPENDENCIES += libselinux
 else
-LIBGLIB2_CONF_OPTS += -Dselinux=disabled
+LIBGLIB2_CONF_OPTS += -Dselinux=disabled -Dxattr=false
 endif
 
 # Purge gdb-related files