libunistring: add wchar dependency

Even though libunistring itself builds fine, its library contains
undefined references to wchar related functions, which are causing
link failures when the library is actually linked into an application.

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

diff --git a/package/libunistring/Config.in b/package/libunistring/Config.in
index ebb37d9794fbed338debffc56d2b35572409f084..88fc658035a30b24cac9cbbf5d11cc5a17037365 100644 (file)
--- a/package/libunistring/Config.in
+++ b/package/libunistring/Config.in
@@ -1,8 +1,12 @@
 config BR2_PACKAGE_LIBUNISTRING
        bool "libunistring"
+       depends on BR2_USE_WCHAR
        help
          The libunistring library provides functions for manipulating
          Unicode strings and for manipulating C strings according to
          the Unicode standard.
 
          http://www.gnu.org/software/libunistring/
+
+comment "libunistring needs a toolchain w/ wchar"
+       depends on !BR2_USE_WCHAR