supertux: select BR2_PACKAGE_LIBCURL

libcurl is unconditionally added to the dependencies list in
supertux.mk. However libcurl is not selected in Config.in.

This patch fixes that.

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Acked-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/supertux/Config.in

@@ -13,6 +13,7 @@ config BR2_PACKAGE_SUPERTUX
 	select BR2_PACKAGE_BOOST_DATE_TIME
 	select BR2_PACKAGE_BOOST_FILESYSTEM
 	select BR2_PACKAGE_BOOST_SYSTEM
+	select BR2_PACKAGE_LIBCURL
 	select BR2_PACKAGE_LIBGLEW
 	select BR2_PACKAGE_LIBGLU # GL/glu.h
 	select BR2_PACKAGE_LIBOGG