🚀 go-pugleaf

I have a problem with the way gnu-make-3.55 identifies
implied phony targets.  A target with no dependencies that
has rules associated with it is assumed to be a phony target
even though it is not declared as one.

I use file targets without dependencies in my makefiles to
create directories that only need to exist, not "updated".

Consider the following makefile:

#######################
.PHONY : all

all : dir/foo dir/bar

dir/foo : dir
	touch $@

dir/bar : dir
	touch $@

dir :
	mkdir $@
#######################

The first time this is run we get:

mkdir dir
touch dir/foo
touch dir/bar

Which is ok.


The second time we get:

mkdir dir
mkdir: dir: File exists


Why should make update dir?  It isn't a phony target and it
does exist so it shouldn't be remade.

Here is the diff -c output for what I changed in order to
fix it:

############################################################################

*** remake.c    Fri Sep  1 12:05:40 1989
--- remake.c.orig       Tue Aug 22 05:21:12 1989
***************
*** 449,464 ****
    /* Here depth returns to the value it had when we were called.  */
    depth--;
  
- #ifdef IMPLIED_PHONY_TARGETS
    if (file->deps == 0 && file->cmds != 0)
      {
        must_make = 1;
        DEBUGPR ("Target `%s' has commands but no dependencies.\n");
      }
!   else 
! #endif IMPLIED_PHONY_TARGETS
! 
!   if (!deps_changed && file->cmds == 0)
      {
        must_make = 0;
        DEBUGPR ("No commands for `%s' and no dependencies actually changed.\n");
--- 449,460 ----
    /* Here depth returns to the value it had when we were called.  */
    depth--;
  
    if (file->deps == 0 && file->cmds != 0)
      {
        must_make = 1;
        DEBUGPR ("Target `%s' has commands but no dependencies.\n");
      }
!   else if (!deps_changed && file->cmds == 0)
      {
        must_make = 0;
        DEBUGPR ("No commands for `%s' and no dependencies actually changed.\n");

############################################################################

It seems to me that there should be no
implied PHONY targets, but I want to be sure I'm not
screwing something else up by doing this.  Comments?
-- 
	--Dale Nielsen				ARPA:  dale@vicorp.UU.NET
	  V. I. Corporation			UUCP:  uunet!vicorp!dale
	  Amherst Research Park			PHONE: (413) 253-3482
	  Amherst, Massachusetts  01002		FAX:   (413) 256-0574