On Sun, 22 Jul 2001, Ken Williams wrote:
> Here's another patch to MakeMaker. It adds initial support for a
Thanks.
> 'make diff' command. Some important things are still missing:
>
> * diff always has the -u flag, no way to change it yet
That's a pretty significant problem. On my Solaris system, I can run
either Sun's diff (which doesn't understand -u) or GNU diff, which is
installed as gdiff.
Various possibilities spring to mind:
1. Supply a DIFF variable that is 'diff -c' by default and that contains
both the name of the executable and the flag to be passed to it.
make diff DIFF='diff -c' # The default ?
make diff DIFF='gdiff -u'
make diff DIFF='diff' # Truly portable, even to old SVR3
# systems without diff -c.
2. Supply both a DIFF and a DIFFFLAGS variable.
make diff 'DIFF=gdiff' DIFFLAGS='-u'
Though more flexible, this latter seems a bit overkill.
--
Andy Dougherty [EMAIL PROTECTED]
Dept. of Physics
Lafayette College, Easton PA 18042
