Declare localeconv() in <locale.h>

The function is not implemented by our C library, but it is not
possible to build GNU libstdc++-v3 if the declaration is not part
of this header.

Change-Id: Iff6fa63465dde0d4e38c0f91709475bb35b31af9
diff --git a/ndk/platforms/android-3/include/locale.h b/ndk/platforms/android-3/include/locale.h
index df42921..4259ddd 100644
--- a/ndk/platforms/android-3/include/locale.h
+++ b/ndk/platforms/android-3/include/locale.h
@@ -51,9 +51,8 @@
 
 extern char *setlocale(int category, const char *locale);
 
-/* Make libstdc++-v3 happy.  */
+#if 1 /* MISSING FROM BIONIC - DEFINED TO MAKE libstdc++-v3 happy */
 struct lconv { };
-#if 0 /* MISSING FROM BIONIC */
 struct lconv *localeconv(void);
 #endif /* MISSING */