Message-Id: <199512021742.RAA14346@exalt.x.org>
To: hackers@freefall.freebsd.org
Subject: Minor change to make
Date: Sat, 02 Dec 1995 12:42:52 EDT
From: "Kaleb S. KEITHLEY" <kaleb@x.org>
Sender: owner-hackers@freebsd.org
Precedence: bulk


Who's Mr. /usr/bin/make? 

I want make to silently ignore a failure to find a .include file. The 
reason I want this is because in the next release of X imake will generate
Makefiles that can use include files for dependencies if the system's make 
supports it.

N.B. ClearMake, SGI, and Digital, makes all have include directives that 
silently ignore a failure to find the include file, so this isn't a new 
idea. And if you think about it, it's really a necessity to ignore the 
failure otherwise you have a chick-or-the-egg problem when you try to do 
a `make depend` to generate the include file.

I've appended a trivial patch to the end that gives me what I want. If
this isn't acceptable for some reason I would consider an alternative 
directive, e.g. `.sinclude' (documented of course, and I'd do the work) 
that does what I want. 

Comments?

--

Kaleb KEITHLEY
X Consortium


(note that this patch intentionally does not change the behavior in the 
undocumented traditional SYSV include directive processing, although
maybe it should.)

diff -c usr.bin/make/parse.c.orig usr.bin/make/parse.c
*** usr.bin/make/parse.c.orig   Sat Dec  2 07:35:46 1995
--- usr.bin/make/parse.c        Sat Dec  2 08:08:34 1995
***************
*** 37,43 ****
   */
  
  #ifndef lint
! static char sccsid[] = "@(#)parse.c   8.3 (Berkeley) 3/19/94";
  #endif /* not lint */
  
  /*-
--- 37,43 ----
   */
  
  #ifndef lint
! static char sccsid[] = "@(#)parse.c   8.3 (Berkeley) 3/19/94 frob";
  #endif /* not lint */
  
  /*-
***************
*** 1685,1691 ****
--- 1685,1693 ----
  
      if (fullname == (char *) NULL) {
        *cp = endc;
+ #if WANT_FATAL_INCLUDE_FAILURE
        Parse_Error (PARSE_FATAL, "Could not find %s", file);
+ #endif
        return;
      }