Re: how to use a different /bin/sh with GNU Make?

[Mark Galeck]

Yes I agree it is terrible to replace /bin/anything permanently, or during 
boot.  But for me this is all just a temporary trick to achieve some temporary 
result, and then I will revert.  And my modification to /bin/sh is benign - it 
merely writes to some file not used for other purpose, every time it interprets 
a command.  I can't modify Makefiles - this is a "marketing" not technical 
issue.  Technically I could just like you suggested, do it automatically.  But 
for certain marketing reasons, I have to be able to say "no Makefiles have been 
modified, or, there were very minimal changes - like, one line had to be 
modified".  
It sounds like the simplest thing to do to keep marketing happy and do what I 
need, is to hack Make a little.  
Thank you again.  
      From: Reinier Post <address@hidden>
 To: address@hidden 
 Sent: Tuesday, October 13, 2015 11:45 AM
 Subject: Re: how to use a different /bin/sh with GNU Make?
   
On Tue Oct 13 12:16:48 2015, address@hidden (Mark Galeck) wrote:
> I mean, I guess my big problem is this.
> I have a massively GNU Make recursive system.  (Yes I know it is a bad thing; 
>  I did not write it myself).  
> I hacked a shell to do some custom stuff, and I want to use the hacked shell 
> with GNU Make.

I think it is a terrible idea to replace anything in /bin or /usr/bin
with something custom.  Just don't.  /bin/sh is heavily used by your OS
(e.g. during boot), you don't want to break any assumption anything
you didn't write has on how it behaves.

> I can't very well use the SHELL hack, because that would mean, I
> would have to modify every single Makefile, of which there are
> gazillions.

Something like

  find . -name Makefile | xargs -d'\n' perl -i.orig -0pe 's#^#SHELL = 
/usr/local/bin/customsh$/#'

should do the trick.

If you don't want to modify make itself, that is.

-- 
Reinier Post
TU Eindhoven



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