*** empty log message ***

etc/MACHINES

@@ -434,7 +434,10 @@ Intel 386 (-machine=intel386 or -machine=is386;
   18.58 should support a wide variety of operating systems.
   Use -opsystem=isc2-2 for Interactive 386/ix version 2.2.
   Use -opsystem=386ix for prior versions.
-  Use -opsystem=esix for Esix.  It isn't clear what to do on an SCO system.
+  Use -opsystem=esix for Esix.
+  It isn't clear what to do on an SCO system.  The system's C
+  preprocessor doesn't seem to handle the src subdirectory's Make
+  trickery, so you will probably need to install the GNU C preprocessor.
 
   If you are using Xenix, see notes above under Xenix.
 

src/callproc.c

@@ -247,6 +247,9 @@ If you quit, the process is killed with SIGKILL.")
       return Qnil;
     }
 
+  synch_process_death = 0;
+  synch_process_retcode = 0;
+
   record_unwind_protect (call_process_cleanup,
 			 Fcons (make_number (fd[0]), make_number (pid)));
 

src/s/hpux.h

@@ -133,7 +133,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
    so that Emacs can tell instantly when you try to modify
    a file that someone else has modified in his Emacs.  */
 
-/* #define CLASH_DETECTION */
+#define CLASH_DETECTION
 
 /* Define SHORTNAMES if the C compiler can distinguish only
    short names.  It means that the stuff in ../shortnames