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Date: Sat, 6 Sep 1997 11:48:19 -0600 (MDT)
From: Marc Slemko <marcs@znep.com>
To: hackers@freebsd.org
Subject: BSD make broken with forced targets 
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If I create the below Makefile:

#----------------------------------------------------------------------
default: proxy
	@echo "Done building module subdirectories"

proxy: ForceMe
	@echo making: $@

ForceMe:
#----------------------------------------------------------------------

then do:

marcs@alive:/tmp/tm$ touch proxy ; make
Done building module subdirectories
marcs@alive:/tmp/tm$ touch proxy ; sleep 1 ; make
making: proxy
Done building module subdirectories

It doesn't execute the proxy target unless I make it pause in
between.  Any workarounds other than changing the target to proxy_targ
or something like that?  

Aha.  The below patch fixes it for me.  Anyone agree with the patch?

Index: compat.c
===================================================================
RCS file: /mnt/misc1/cvs//src/usr.bin/make/compat.c,v
retrieving revision 1.8
diff -u -r1.8 compat.c
--- compat.c	1997/02/22 19:27:07	1.8
+++ compat.c	1997/09/06 17:37:23
@@ -486,7 +486,7 @@
 	     * check for gn->children being empty as well...
 	     */
 	    if (!Lst_IsEmpty(gn->commands) || Lst_IsEmpty(gn->children)) {
-		gn->mtime = now;
+		gn->mtime = now+1;
 	    }
 #else
 	    /*
@@ -508,7 +508,7 @@
 	     * -- ardeb 1/12/88
 	     */
 	    if (noExecute || Dir_MTime(gn) == 0) {
-		gn->mtime = now;
+		gn->mtime = now+1;
 	    }
 	    if (gn->cmtime > gn->mtime)
 		gn->mtime = gn->cmtime;