erlang-p1-stringprep: add missing dependency on erlang-p1-utils

Fixes:

  http://autobuild.buildroot.net/results/6a6fe920eb54d05ba7aff0da9c4dc5a799ae0e3b/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/erlang-p1-stringprep/Config.in

@@ -4,6 +4,7 @@ comment "erlang-p1-stringprep needs a toolchain w/ C++"
 config BR2_PACKAGE_ERLANG_P1_STRINGPREP
 	bool "erlang-p1-stringprep"
 	depends on BR2_INSTALL_LIBSTDCPP
+	select BR2_PACKAGE_ERLANG_P1_UTILS
 	help
 	  Erlang interface to stringprep
 

package/erlang-p1-stringprep/erlang-p1-stringprep.mk

@@ -8,5 +8,6 @@ ERLANG_P1_STRINGPREP_VERSION = 1.0.0
 ERLANG_P1_STRINGPREP_SITE = $(call github,processone,stringprep,$(ERLANG_P1_STRINGPREP_VERSION))
 ERLANG_P1_STRINGPREP_LICENSE = TCL (tools/*.tcl), Apache-2.0 (rest)
 ERLANG_P1_STRINGPREP_LICENSE_FILES = LICENSE.ALL LICENSE.TCL LICENSE.txt
+ERLANG_P1_STRINGPREP_DEPENDENCIES = erlang-p1-utils
 
 $(eval $(rebar-package))