URL:
<http://savannah.gnu.org/bugs/?27047>
Summary: Difficulties defining prerequisites for pattern
targets.
Project: make
Submitted by: walton
Submitted on: Fri 17 Jul 2009 10:18:57 AM GMT
Severity: 3 - Normal
Item Group: Enhancement
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: 3.81
Operating System: POSIX-Based
Fixed Release: None
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Details:
Implicit rules with a pattern target are NOT recognized if they have no
commands.
This means they cannot be used to define prerequisites. I.e.
test1%.out:<tab>test1
does'nt do anything. Also
test1%.out:<tab>TEST=test1
test%.out:<tab>${TEST}
fails because target specific variables cannot be used in prerequisite list.
Something should be done to make this so users don't get trapped
by it an have to waste a lot of time figuring all this out. Perhaps a
pattern rule with no commands could give a warning message, at a minimum. It
would be nice if target specific variables could appear in prerequisites.
~
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