config.sub quoting issue

[Torbjorn Granlund]

Sebastian Freundt <hroptatyr at gna.org> writes:

  Hey there,
  we've had a report regarding one of your build chain scripts, config.sub.
  
  Basic facts: NetBSD4, login shell is ksh, macharchos: sparc-sun-sunos4.1.1
  
  Basically this is what happens:
  
  [hf at Gstoder] /<2>sxemacs/sxemacs-22.1.9 > /bin/sh ./config.sub sun4
  sparc-sun-sunos4.1.1
  [hf at Gstoder] /<2>sxemacs/sxemacs-22.1.9 > /bin/ksh ./config.sub sun4
  "./config.sub" not found
  [hf at Gstoder] /<2>sxemacs/sxemacs-22.1.9 > /usr/pkg/bin/bash ./config.sub sun4
  sparc-sun-sunos4.1.1
  [hf at Gstoder] /<2>sxemacs/sxemacs-22.1.9 >
  
  we nailed it down to a quoting issue, config.sub:44
  
  configfsf_sub="`echo \"$0\" | sed 's/config.sub$/configfsf.sub/'`"
  
  our fix is to use the more quoting-tolerant $(...) syntax:
  configfsf_sub=$(echo "$0" | sed 's/config.sub$/configfsf.sub/')
  
I don't think you can expect that quoting style to work in
all /bin/sh out there, unfortunately.

Why do you explicitly use /bin/ksh, why don't you simply let the !# in
the file determine that interpreter to use?  Then things should work.

-- 
Torbjörn