4 dnl Find a new-enough version of Perl.
6 # Copyright (C) 1998-2001, 2003, 2004, 2007 Free Software Foundation, Inc.
8 # This file is free software; the Free Software Foundation
9 # gives unlimited permission to copy and/or distribute it,
10 # with or without modifications, as long as this notice is preserved.
14 dnl FIXME: don't hard-code 5.005
15 AC_MSG_CHECKING([for perl5.005 or newer])
16 if test "${PERL+set}" = set; then
17 # `PERL' is set in the user's environment.
18 candidate_perl_names="$PERL"
21 candidate_perl_names='perl perl5'
27 PERL="$am_missing_run perl"
28 for perl in $candidate_perl_names; do
29 # Run test in a subshell; some versions of sh will print an error if
30 # an executable is not found, even if stderr is redirected.
31 if ( $perl -e 'require 5.005; use File::Compare' ) > /dev/null 2>&1; then
39 test $found = no && AC_MSG_WARN([
40 WARNING: You don't seem to have perl5.005 or newer installed, or you lack
41 a usable version of the Perl File::Compare module. As a result,
42 you may be unable to run a few tests or to regenerate certain
43 files if you modify the sources from which they are derived.