Re: Why is this perl checking code not working for me?

[Dr. David Kirkby]

Russ Allbery wrote:
> "Dr. David Kirkby" <address@hidden> writes:
> > Russ Allbery wrote:
>
> > > That macro is using a questionable technique to accomplish this (parsing
> > > the output of perl -v and then relying on AX_COMPARE_VERSION).  Here's a
> > > much simpler macro that accomplishes the same thing:
> > >
> > > AC_DEFUN([AX_PROG_PERL_VERSION],
> > > [AC_CACHE_CHECK([for Perl version $1 or later], [ax_cv_prog_perl_version],
> > >     [AS_IF(["$PERL" -e 'require $1;' >/dev/null 2>&1], [$1], [$2])])])
>
> > Thank you. I don't know whether there is a typo here, or perhaps I am
> > calling it incorrectly - which is the same way as I called the original
> > macro.
>
> > checking how to run the C preprocessor... gcc -E
> > checking for perl... /usr/local/bin/perl
> > checking for Perl version 5.8.0 or later... ./configure: line 4685: 5.8.0:
> > command not found
>
> That's an odd error message, since it implies that the single quotes
> around require $1 are missing.  What's line 4685 of your configure file?

on line 4685 there is:

  5.8.0

Here's are a few lines either side of it:


# Be more Bourne compatible
DUALCASE=1; export DUALCASE # for MKS sh
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
"configure" 6624 lines, 190102 characters
fi


{ $as_echo "$as_me:$LINENO: checking for Perl version 5.8.0 or later" >&5
$as_echo_n "checking for Perl version 5.8.0 or later... " >&6; }
if test "${ax_cv_prog_perl_version+set}" = set; then
  $as_echo_n "(cached) " >&6
else
  if "$PERL" -e 'require 5.8.0;' >/dev/null 2>&1; then
  5.8.0
fi

fi
{ $as_echo "$as_me:$LINENO: result: $ax_cv_prog_perl_version" >&5
$as_echo "$ax_cv_prog_perl_version" >&6; }


{ $as_echo "$as_me:$LINENO: checking for a sed that does not truncate 
output" >&5
$as_echo_n "checking for a sed that does not truncate output... " >&6; }
if test "${ac_cv_path_SED+set}" = set; then
  $as_echo_n "(cached) " >&6