[bug #35133] Pattern rules used as dependencies for .PRECIOUS don't actually do pattern matching

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?35133>

                 Summary: Pattern rules used as dependencies for .PRECIOUS
don't actually do pattern matching
                 Project: make
            Submitted by: None
            Submitted on: Tue 20 Dec 2011 10:17:46 PM UTC
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 3.82
        Operating System: POSIX-Based
           Fixed Release: None
           Triage Status: None

    _______________________________________________________

Details:

Simple example:

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
all: some_target_blah.o stuff.o
  @echo $@, $<

%.y:
  @echo $@

some_target%.cc : %.y
  @echo $@, ${TEST}

%.cc:
  @echo $@, ${TEST}

%.o : %.cc
  @echo $@, $<

#1
%.cc : TEST := stuff

#2
.PRECIOUS: %.cc
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

In the above example, pattern-matching is used in a few different ways; the
two I'm drawing attention to in this bug report are #1 and #2.

#1 causes *EVERY* .cc file to have TEST set.  However, in #2, the pattern
specified as a dependency of .PRECIOUS only applies to files built using a
rule of the form:

%.cc : whatever

Since 'some_target_blah.o' is built using a different pattern, the .PRECIOUS
directive doesn't apply to it; thus, make will still try to remove that file
when it is finished running.





    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?35133>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/