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New feature: Post-requisites
From: |
Alejandro Colomar |
Subject: |
New feature: Post-requisites |
Date: |
Fri, 22 Jul 2022 14:05:03 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.0.2 |
Hi,
I'd like to suggest a new feature: post-requisites.
As the word suggests, as pre-requisites are satisfied before a given
target, post-requisites would be satisfied _after_ a given target.
Why would someone ever need that in a Makefile:
In an install target for a library, you may want to run ldconfig(8)
after any install targets have executed.
In an install target for the linux man-pages, you may want to run
mandb(8) after any pages have been installed in the system.
The proposed syntax would be similar to that of order only
prerequisites, but using '>' instead of '|':
[
[...]
$(DESTDIR)$(man3dir)/foo.3: man3/foo.3 | $(DESTDIR)$(man3dir) > update-mandb
$(info INSTALL $@)
@$(INSTALL_DATA) -T $< $@
$(DESTDIR)$(man3dir)/bar.3: man3/bar.3 | $(DESTDIR)$(man3dir) > update-mandb
$(info INSTALL $@)
@$(INSTALL_DATA) -T $< $@
.PHONY: update-mandb
update-mandb:
$(info MANDB)
@mandb
.PHONY: install
install: $(DESTDIR)$(man3dir)/foo.3 $(DESTDIR)$(man3dir)/bar.3
]
So that `make install` would install foo.3 and bar.3, and after all of
the pages have been installed, mandb(8) would be run.
And `make /usr/local/share/man/man3/foo.3` would install foo.3, and
after it, it would run mandb(8).
Does that make sense to you?
Cheers,
Alex
--
Alejandro Colomar
<http://www.alejandro-colomar.es/>
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- New feature: Post-requisites,
Alejandro Colomar <=