Fix for Bug#5984.

* composite.c (autocmp_chars): Save point as marker before calling
auto-composition-function.

* lisp.h (restore_point_unwind): Add prototype.

* fileio.c (restore_point_unwind): Remove static attribute.

4 files changed, 23 insertions, 3 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index d061857bc3a..29506bee67e 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,12 @@
+2010-04-30  Andreas Schwab  <schwab@linux-m68k.org>
+
+        * composite.c (autocmp_chars): Save point as marker before calling
+        auto-composition-function (Bug#5984).
+
+        * lisp.h (restore_point_unwind): Add prototype.
+
+        * fileio.c (restore_point_unwind): Remove static attribute.
+
 2010-04-23  Kenichi Handa  <handa@m17n.org>
 
         * ftfont.c (M17N_FLT_USE_NEW_FEATURE): Define it if we can use the
diff --git a/src/composite.c b/src/composite.c
index 632c9f90d12..1295a03e9f6 100644
--- a/src/composite.c
+++ b/src/composite.c
@@ -990,6 +990,14 @@ autocmp_chars (cft_element, charpos, bytepos, limit, win, face, string)
             {
               Lisp_Object args[6];
 
+              /* Save point as marker before calling out to lisp.  */
+              if (NILP (string))
+                {
+                  Lisp_Object m = Fmake_marker ();
+                  set_marker_both (m, Qnil, pt, pt_byte);
+                  record_unwind_protect (restore_point_unwind, m);
+                }
+
               args[0] = Vauto_composition_function;
               args[1] = AREF (elt, 2);
               args[2] = pos;
@@ -998,8 +1006,10 @@ autocmp_chars (cft_element, charpos, bytepos, limit, win, face, string)
               args[5] = string;
               gstring = safe_call (6, args);
             }
-          if (NILP (string))
-            TEMP_SET_PT_BOTH (pt, pt_byte);
+          else if (NILP (string))
+            {
+              TEMP_SET_PT_BOTH (pt, pt_byte);
+            }
           return unbind_to (count, gstring);
         }
     }
diff --git a/src/fileio.c b/src/fileio.c
index a80ba11bcab..440a726b26b 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -302,7 +302,7 @@ close_file_unwind (fd)
 
 /* Restore point, having saved it as a marker.  */
 
-static Lisp_Object
+Lisp_Object
 restore_point_unwind (location)
      Lisp_Object location;
 {
diff --git a/src/lisp.h b/src/lisp.h
index 7f5d5df66c6..6cbf35c7880 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -3018,6 +3018,7 @@ EXFUN (Ffile_readable_p, 1);
 EXFUN (Ffile_executable_p, 1);
 EXFUN (Fread_file_name, 6);
 extern Lisp_Object close_file_unwind P_ ((Lisp_Object));
+extern Lisp_Object restore_point_unwind P_ ((Lisp_Object));
 extern void report_file_error P_ ((const char *, Lisp_Object)) NO_RETURN;
 extern int internal_delete_file P_ ((Lisp_Object));
 extern void syms_of_fileio P_ ((void));