Re: [PATCH] Allow "make compare" to use "make gnucompare" automatically

[Andrew Pinski <pinskia at physics dot uc dot edu>]

For some reason this does not work, it just matches 7,
but I ran `cmp --version 2>&1 |sed -n 's/^.*GNU 
diffutils[^0-9.]*\([0-9][0-9.]*\).*$/\1/p'`
which works with:
cmp (GNU diffutils) 2.7.2
cmp - GNU diffutils version 2.7
Thanks,
Andrew Pinski

On Sunday, Apr 27, 2003, at 23:26 US/Eastern, Phil Edwards wrote:

> On Sun, Apr 27, 2003 at 09:36:11AM -0400, Andrew Pinski wrote:
> > I have a small problem, with your patch, it does not match the 
> > version I
> > have on my machine (running powerpc-apple-darwin6.5, Mac OS X 10.2.5
> > with
> > the December Developer tools), 2.7.
> >
> > Here is the output of cmp --version:
> > cmp - GNU diffutils version 2.7
>
> Hm.  That seems easy enough to fix.  Could you try applying this patch,
> regenerating gcc/configure, and seeing whether it helps?
>
>
> Index: configure.in
> ===================================================================
> RCS file: /home/pme/Repositories/GCC/gcc/gcc/configure.in,v
> retrieving revision 1.663
> diff -u -3 -r1.663 configure.in
> --- configure.in        25 Apr 2003 21:15:00 -0000      1.663
> +++ configure.in        28 Apr 2003 03:24:16 -0000
> @@ -648,7 +648,7 @@
>  # If GNU cmp is present and recent enough, 'make compare' can be
>  # significantly faster.
>  gcc_AC_CHECK_PROG_VER(gnucmp, cmp, --version,
> -  [(GNU diffutils) \([0-9][0-9.]*\)], [2.[4-9]*])
> +  [GNU diffutils.*\([0-9][0-9.]*\)], [2.[4-9]*])
>  if test $gcc_cv_prog_cmp_modern = yes; then
>    make_compare_target=gnucompare
>  else