bugmake - Bugs: bug #47170, make: it would be nice to get -R...

 
 

bug #47170: make: it would be nice to get -R behavior using a directive inside a Makefile

Submitter:  Manoj Srivastava <srivasta>
Submitted:  Tue 16 Feb 2016 07:21:20 PM UTC
   
 
Severity:  3 - Normal Item Group:  Enhancement
Status:  Duplicate Privacy:  Public
Assigned to:  None Open/Closed:  Closed
Component Version:  None Operating System:  Any
Fixed Release:  4.0 Triage Status:  None
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Tue 16 Feb 2016 07:31:27 PM UTC, comment #1: 

This is already supported in GNU make 4.0 and above; from the NEWS file:


* Setting the -r and -R options in MAKEFLAGS inside a makefile now works as
  expected, removing all built-in rules and variables, respectively.


Paul D. Smith <psmith>
Group administrator
Tue 16 Feb 2016 07:21:20 PM UTC, original submission:  


Hi,

This was reported by a debian user. Please retain a CC to
 620211-forwarded@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

Manoj Srivastava <srivasta>

 

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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-02-16 psmith StatusNone Duplicate
        Open/ClosedOpen Closed
        Fixed ReleaseNone 4.0
    2016-02-16 srivasta Carbon-Copy- Added -email is unavailable-

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