Index: trunk/config.auto.h.in
===================================================================
--- trunk/config.auto.h.in	(revision 2232)
+++ trunk/config.auto.h.in	(revision 2233)
@@ -29,6 +29,9 @@
 
 /**** TODO ****/
 
+/* C89 has atexit() */
+#define HAS_ATEXIT 1
+
 /* Define to 1 if you have the `canonicalize_file_name' function. */
 #define HAVE_CANONICALIZE_FILE_NAME 1
 
Index: trunk/src/plug_io.c
===================================================================
--- trunk/src/plug_io.c	(revision 2232)
+++ trunk/src/plug_io.c	(revision 2233)
@@ -339,10 +339,9 @@
 }
 
 
-#if !defined(HAS_ATEXIT) && !defined(HAS_ON_EXIT)
+#if !defined(HAS_ATEXIT)
 /* ---------------------------------------------------------------------------
- * some local identifiers for OS without an atexit() or on_exit()
- * call
+ * some local identifiers for OS without an atexit() call
  */
 static char *TMPFilename = NULL;
 #endif
@@ -713,7 +712,7 @@
 	free(filename);
 }
 
-#if !defined(HAS_ATEXIT) && !defined(HAS_ON_EXIT)
+#if !defined(HAS_ATEXIT)
 /* ---------------------------------------------------------------------------
  * makes a temporary copy of the data. This is useful for systems which
  * doesn't support calling functions on exit. We use this to save the data
Index: trunk/src/plug_io.h
===================================================================
--- trunk/src/plug_io.h	(revision 2232)
+++ trunk/src/plug_io.h	(revision 2233)
@@ -98,12 +98,8 @@
 int WritePipe(char *, bool, const char *fmt);
 
 #ifndef HAS_ATEXIT
-#ifdef HAS_ON_EXIT
-void GlueEmergencySave(int, caddr_t);
-#else
 void SaveTMPData(void);
 void RemoveTMPData(void);
 #endif
-#endif
 
 #endif
Index: trunk/src_plugins/io_pcb/parse_l.c
===================================================================
--- trunk/src_plugins/io_pcb/parse_l.c	(revision 2232)
+++ trunk/src_plugins/io_pcb/parse_l.c	(revision 2233)
@@ -2412,7 +2412,7 @@
 
 	CreateBeLenient (true);
 
-#if !defined(HAS_ATEXIT) && !defined(HAS_ON_EXIT)
+#if !defined(HAS_ATEXIT)
 	if (PCB && PCB->Data)
 	  SaveTMPData();
 	returncode = yyparse();
Index: trunk/src_plugins/io_pcb/parse_l.l
===================================================================
--- trunk/src_plugins/io_pcb/parse_l.l	(revision 2232)
+++ trunk/src_plugins/io_pcb/parse_l.l	(revision 2233)
@@ -293,7 +293,7 @@
 
 	CreateBeLenient (true);
 
-#if !defined(HAS_ATEXIT) && !defined(HAS_ON_EXIT)
+#if !defined(HAS_ATEXIT)
 	if (PCB && PCB->Data)
 	  SaveTMPData();
 	returncode = yyparse();