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From: | David Boyce |
Subject: | [bug #54675] avoid redundant recipe warning for identical recipes |
Date: | Mon, 17 Sep 2018 21:23:11 -0400 (EDT) |
User-agent: | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36 |
URL: <https://savannah.gnu.org/bugs/?54675> Summary: avoid redundant recipe warning for identical recipes Project: make Submitted by: boyski Submitted on: Tue 18 Sep 2018 01:23:09 AM UTC Severity: 3 - Normal Item Group: Enhancement Status: None Privacy: Public Assigned to: None Open/Closed: Open Discussion Lock: Any Component Version: SCM Operating System: None Fixed Release: None Triage Status: None _______________________________________________________ Details: I'm wondering whether it might be reasonable to skip the redundant-recipe warnings if the recipes are identical anyway. Test case: % cat makefile .PHONY: all all: foo:; touch $@ foo:; touch $@ % make makefile:5: warning: overriding recipe for target 'foo' makefile:4: warning: ignoring old recipe for target 'foo' make: Nothing to be done for 'all'. It looks like this might be avoidable with a strcmp in read.c around line 2113 (in current SCM) though I'm not in a position to try it now. This comes up because I have various macros and helper makefiles which generate rules to create directory paths. The recipe to create a directory will in all cases be "mkdir $@" in my use case but when multiple macros end up generating identical rules these spurious warnings are still printed. Of course it can be programmed around but I wonder whether it's worth giving the warning at all here. _______________________________________________________ Reply to this item at: <https://savannah.gnu.org/bugs/?54675> _______________________________________________ Message sent via Savannah https://savannah.gnu.org/
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