blob: 96421b9a31df9b039ae819f28b1a13bd7c6751e8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
#serial 7
dnl From Jim Meyering.
dnl Find a new-enough version of Perl.
dnl
# Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004 Free Software
# Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_PERL],
[
dnl FIXME: don't hard-code 5.003
dnl FIXME: should we cache the result?
AC_MSG_CHECKING([for perl5.003 or newer])
if test "${PERL+set}" = set; then
# `PERL' is set in the user's environment.
candidate_perl_names="$PERL"
perl_specified=yes
else
candidate_perl_names='perl perl5'
perl_specified=no
fi
found=no
AC_SUBST(PERL)
PERL="$am_missing_run perl"
for perl in $candidate_perl_names; do
# Run test in a subshell; some versions of sh will print an error if
# an executable is not found, even if stderr is redirected.
if ( $perl -e 'require 5.003; use File::Compare' ) > /dev/null 2>&1; then
PERL=$perl
found=yes
break
fi
done
AC_MSG_RESULT($found)
test $found = no && AC_MSG_WARN([
WARNING: You don't seem to have perl5.003 or newer installed, or you lack
a usable version of the Perl File::Compare module. As a result,
you may be unable to run a few tests or to regenerate certain
files if you modify the sources from which they are derived.
] )
])
|
