1 # ===========================================================================
2 # https://www.gnu.org/software/autoconf-archive/ax_prog_perl_modules.html
3 # ===========================================================================
7 # AX_PROG_PERL_MODULES([MODULES], [ACTION-IF-TRUE], [ACTION-IF-FALSE])
11 # Checks to see if the given perl modules are available. If true the shell
12 # commands in ACTION-IF-TRUE are executed. If not the shell commands in
13 # ACTION-IF-FALSE are run. Note if $PERL is not set (for example by
14 # calling AC_CHECK_PROG, or AC_PATH_PROG), AC_CHECK_PROG(PERL, perl, perl)
17 # MODULES is a space separated list of module names. To check for a
18 # minimum version of a module, append the version number to the module
19 # name, separated by an equals sign.
23 # AX_PROG_PERL_MODULES( Text::Wrap Net::LDAP=1.0.3, ,
24 # AC_MSG_WARN(Need some Perl modules)
28 # Copyright (c) 2009 Dean Povey <povey@wedgetail.com>
30 # Copying and distribution of this file, with or without modification, are
31 # permitted in any medium without royalty provided the copyright notice
32 # and this notice are preserved. This file is offered as-is, without any
37 AU_ALIAS([AC_PROG_PERL_MODULES], [AX_PROG_PERL_MODULES])
38 AC_DEFUN([AX_PROG_PERL_MODULES],[dnl
40 m4_define([ax_perl_modules])
41 m4_foreach([ax_perl_module], m4_split(m4_normalize([$1])),
43 m4_append([ax_perl_modules],
44 [']m4_bpatsubst(ax_perl_module,=,[ ])[' ])
47 # Make sure we have perl
48 if test -z "$PERL"; then
49 AC_CHECK_PROG(PERL,perl,perl)
52 if test "x$PERL" != x; then
53 ax_perl_modules_failed=0
54 for ax_perl_module in ax_perl_modules; do
55 AC_MSG_CHECKING(for perl module $ax_perl_module)
57 # Would be nice to log result here, but can't rely on autoconf internals
58 $PERL -e "use $ax_perl_module; exit" > /dev/null 2>&1
59 if test $? -ne 0; then
61 ax_perl_modules_failed=1
67 # Run optional shell commands
68 if test "$ax_perl_modules_failed" = 0; then
76 AC_MSG_WARN(could not find perl)