[bug #51414] Use of multiple $$% (for .SECONDEXPANSION) causes make to misinterpret the rule as a pattern rule

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?51414>

                 Summary: Use of multiple $$% (for .SECONDEXPANSION) causes
make to misinterpret the rule as a pattern rule
                 Project: make
            Submitted by: None
            Submitted on: Fri 07 Jul 2017 01:15:19 PM UTC
                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:

Minimal test Makefile:


.SECONDEXPANSION:

libmy.a(my_source.o): $$(%:_source.o=)_internal.h $$(%:_source.o=)_api.h


Resulting error message:

../test_makefile:2: target 'libmy.a(my_source.o)' doesn't match the target
pattern





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