package/matchbox-lib: fix xlib libcomposite and libxpm symbols

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/matchbox-lib/matchbox-lib.mk

@@ -21,8 +21,8 @@ endef
 
 MATCHBOX_LIB_POST_INSTALL_STAGING_HOOKS += MATCHBOX_LIB_POST_INSTALL_FIXES
 
-ifeq ($(BR2_PACKAGE_X11R7_LIBXCOMPOSITE),y)
-ifeq ($(BR2_PACKAGE_X11R7_LIBXPM),y)
+ifeq ($(BR2_PACKAGE_XLIB_LIBXCOMPOSITE),y)
+ifeq ($(BR2_PACKAGE_XLIB_LIBXPM),y)
 MATCHBOX_LIB_DEPENDENCIES += xlib_libXpm
 endif
 endif