coding.c (Funencodable_char_position): Pay attention to the buffer text relocation (Bug#9389).

1 files changed, 11 insertions, 0 deletions

diff --git a/src/coding.c b/src/coding.c
index 50268099413..e15d725af3a 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -8756,6 +8756,7 @@ to the string.  */)
     }
 
   positions = Qnil;
+  charset_map_loaded = 0;
   while (1)
     {
       int c;
@@ -8783,6 +8784,16 @@ to the string.  */)
         }
 
       from++;
+      if (charset_map_loaded && NILP (string))
+        {
+          p = CHAR_POS_ADDR (from);
+          pend = CHAR_POS_ADDR (to);
+          if (from < GPT && to >= GPT)
+            stop = GPT_ADDR;
+          else
+            stop = pend;
+          charset_map_loaded = 0;
+        }
     }
 
   return (NILP (count) ? Fcar (positions) : Fnreverse (positions));