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[bug #64886] order-only prerequisite on a .PHONY line makes prerequisite
From: |
Greg Minshall |
Subject: |
[bug #64886] order-only prerequisite on a .PHONY line makes prerequisite "unmakeable" |
Date: |
Sun, 12 Nov 2023 12:13:18 -0500 (EST) |
URL:
<https://savannah.gnu.org/bugs/?64886>
Summary: order-only prerequisite on a .PHONY line makes
prerequisite "unmakeable"
Group: make
Submitter: minshall
Submitted: Sun 12 Nov 2023 05:13:16 PM UTC
Severity: 3 - Normal
Item Group: Bug
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: 4.4.1
Operating System: None
Fixed Release: None
Triage Status: None
_______________________________________________________
Follow-up Comments:
-------------------------------------------------------
Date: Sun 12 Nov 2023 05:13:16 PM UTC By: Greg Minshall <minshall>
a buggy makefile can lead to odd behavior (surprise, surprise).
in this case, a target defined (erroneously) as an "order-only" prerequisite
on a .PHONY line, seems to prevent make from ever wanting to create that
target.
given this as a makefile (and, an empty `file.el`, but no `file.elc`):
%.elc: %.el
${EMACS} -f batch-byte-compile $<
.PHONY: all | file.elc
all:
echo all
then
% make file.elc
make: Nothing to be done for 'file.elc'.
(again, `file.elc` does not exist.)
apologies if this isn't a bug.
if there's no reason to allow order-only prerequisites on a `.PHONY` line,
maybe this construction should cause make to emit an error message?
cheers.
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- [bug #64886] order-only prerequisite on a .PHONY line makes prerequisite "unmakeable",
Greg Minshall <=