dropbear: unbundle libtomath & libtomcrypt

DROPBEAR_SMALL_CODE could be only honored with bundled libtomcrypt

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/dropbear/Config.in

@@ -1,6 +1,7 @@
 config BR2_PACKAGE_DROPBEAR
 	bool "dropbear"
 	select BR2_PACKAGE_ZLIB if !BR2_PACKAGE_DROPBEAR_SMALL
+	select BR2_PACKAGE_LIBTOMCRYPT if !BR2_PACKAGE_DROPBEAR_SMALL
 	help
 	  A small SSH 2 server designed for small memory environments.
 

package/dropbear/dropbear.mk

@@ -76,10 +76,11 @@ DROPBEAR_POST_EXTRACT_HOOKS += DROPBEAR_ENABLE_REVERSE_DNS
 endif
 
 ifeq ($(BR2_PACKAGE_DROPBEAR_SMALL),y)
-DROPBEAR_CONF_OPTS += --disable-zlib
+DROPBEAR_CONF_OPTS += --disable-zlib --enable-bundled-libtom
 else
 DROPBEAR_POST_EXTRACT_HOOKS += DROPBEAR_BUILD_FEATURED
-DROPBEAR_DEPENDENCIES += zlib
+DROPBEAR_DEPENDENCIES += zlib libtomcrypt
+DROPBEAR_CONF_OPTS += --disable-bundled-libtom
 endif
 
 ifneq ($(BR2_PACKAGE_DROPBEAR_WTMP),y)