re PR libfortran/31607 (CALL SYSTEM produces garbled output when writing to a buffered file)

	PR libfortran/31607
	* intrinsics/system.c (system_sub): Call flush_all_units.
	* io/io.h (flush_all_units): Move prototype to libgfortran.h.
	* libgfortran.h (flush_all_units): Add prototype.

From-SVN: r124510

libgfortran/ChangeLog

+2007-05-07  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+
+	PR libfortran/31607
+	* intrinsics/system.c (system_sub): Call flush_all_units.
+	* io/io.h (flush_all_units): Move prototype to libgfortran.h.
+	* libgfortran.h (flush_all_units): Add prototype.
+
 2007-05-06  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 
 	PR libfortran/31201

libgfortran/intrinsics/system.c

@@ -49,6 +49,9 @@ system_sub (const char *fcmd, GFC_INTEGER_4 *status, gfc_charlen_type cmd_len)
   char cmd[cmd_len + 1];
   int stat;
 
+  /* Flush all I/O units before executing the command.  */
+  flush_all_units();
+
   memcpy (cmd, fcmd, cmd_len);
   cmd[cmd_len] = '\0';
 

libgfortran/io/io.h

@@ -586,9 +586,6 @@ internal_proto(compare_file_filename);
 extern gfc_unit *find_file (const char *file, gfc_charlen_type file_len);
 internal_proto(find_file);
 
-extern void flush_all_units (void);
-internal_proto(flush_all_units);
-
 extern int stream_at_bof (stream *);
 internal_proto(stream_at_bof);
 

libgfortran/libgfortran.h

@@ -666,6 +666,11 @@ internal_proto(fstrcpy);
 extern void cf_strcpy (char *, int, const char *);
 internal_proto(cf_strcpy);
 
+/* io/intrinsics.c */
+
+extern void flush_all_units (void);
+internal_proto(flush_all_units);
+
 /* io.c */
 
 extern void init_units (void);