iconv: Remove public declaration of __gconv_transliterate

Commit ba7b4d294b ("Complete the
removal of __gconv_translit_find") added a declaration of the
GLIBC_PRIVATE function, __gconv_transliterate, to the installed
header <gconv.h>.  It should have been added to the internal
<gconv_int.h> header.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>

ChangeLog

@@ -1,3 +1,10 @@
+2019-05-15  Florian Weimer  <fweimer@redhat.com>
+
+	* iconv/gconv.h (__gconv_transliterate): Move declaration …
+	* iconv/gconv_int.h (__gconv_transliterate): … here.
+	* iconv/loop.c: Include <iconv/gconv_int.h> instead of <gconv.h>.
+	* iconv/skeleton.c: Likewise.
+
 2019-05-14  Florian Weimer  <fweimer@redhat.com>
 
 	Linux: Add the tgkill function.

iconv/gconv.h

@@ -142,13 +142,4 @@ typedef struct __gconv_info
   __extension__ struct __gconv_step_data __data[0];
 } *__gconv_t;
 
-/* Transliteration using the locale's data.  */
-extern int __gconv_transliterate (struct __gconv_step *step,
-				  struct __gconv_step_data *step_data,
-				  const unsigned char *inbufstart,
-				  const unsigned char **inbufp,
-				  const unsigned char *inbufend,
-				  unsigned char **outbufstart,
-				  size_t *irreversible);
-
 #endif /* gconv.h */

iconv/gconv_int.h

@@ -223,6 +223,14 @@ extern void __gconv_get_builtin_trans (const char *name,
 				       struct __gconv_step *step)
      attribute_hidden;
 
+/* Transliteration using the locale's data.  */
+extern int __gconv_transliterate (struct __gconv_step *step,
+                                  struct __gconv_step_data *step_data,
+                                  const unsigned char *inbufstart,
+                                  const unsigned char **inbufp,
+                                  const unsigned char *inbufend,
+                                  unsigned char **outbufstart,
+                                  size_t *irreversible);
 libc_hidden_proto (__gconv_transliterate)
 
 /* If NAME is an codeset alias expand it.  */

iconv/loop.c

@@ -49,7 +49,7 @@
 
 #include <assert.h>
 #include <endian.h>
-#include <gconv.h>
+#include <iconv/gconv_int.h>
 #include <stdint.h>
 #include <string.h>
 #include <wchar.h>

iconv/skeleton.c

@@ -133,7 +133,7 @@
  */
 
 #include <assert.h>
-#include <gconv.h>
+#include <iconv/gconv_int.h>
 #include <string.h>
 #define __need_size_t
 #define __need_NULL