[bug #49661] syntax anomaly with order-only prereqs and pattern rules

[David Boyce]

URL:
  <http://savannah.gnu.org/bugs/?49661>

                 Summary: syntax anomaly with order-only prereqs and pattern
rules
                 Project: make
            Submitted by: boyski
            Submitted on: Mon 21 Nov 2016 02:33:07 PM GMT
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 4.2.1
        Operating System: None
           Fixed Release: None
           Triage Status: None

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Details:

It appears that order-only prerequisites do not accumulate for pattern targets
when specified without a recipe. The test case should explain pretty clearly.
Here's the makefile:

% cat Makefile
.PHONY: all
all: foo.a bar.b

%.a: A B | C
        @echo "making $@ from '$^ | $|'"

%.b: | C
%.b: A B
        @echo "making $@ from '$^ | $|'"

And here's the sample run:

% mkdir -p A B C

% make
making foo.a from 'A B | C'
making bar.b from 'A B | '




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