URL:
<http://savannah.gnu.org/bugs/?47170>
Summary: make: it would be nice to get -R behavior using a
directive inside a Makefile
Project: make
Submitted by: srivasta
Submitted on: Tue 16 Feb 2016 01:21:20 PM CST
Severity: 3 - Normal
Item Group: Enhancement
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Component Version: None
Operating System: Any
Fixed Release: None
Triage Status: None
_______________________________________________________
Details:
Hi,
This was reported by a debian user. Please retain a CC to
620211-forwar...@bugs.debian.org
so that the Debian BTS has a copy of your input.
What I do now is:
HAVE_NO_BUILTIN_VARIABLES_OPTION := $(shell echo $(MAKEFLAGS) | grep -e R)
ifndef HAVE_NO_BUILTIN_VARIABLES_OPTION
$(error This makefile requires use of the -R/--no-builtin-variables
option)
endif
which forces users of the makefile to do it. But there should be a way to
just do this from with the Makefile. The implicit rules and default variable
values represent the cruft of a bygone era and aren't worth all the trouble
and confusion they cause. And they were an ironic and bad idea to begin
with,
since by definition and convention firm enough to merit them is just going to
get put in somebodies IDE anyway: make is useful for the strange stuff and the
custom work.
Manoj
_______________________________________________________
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