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diff --git a/check_memory/check_memory b/check_memory/check_memory
index bf46711..4f272d1 100644
--- a/check_memory/check_memory
+++ b/check_memory/check_memory
@@ -23,14 +23,36 @@
use strict;
use warnings;
use vars qw($PROGNAME $VERSION $FREECMD $UNIT);
-use Nagios::Plugin;
+
+sub load_module {
+ my @names = @_;
+ my $module;
+ for my $name (@names) {
+ my $file = $name;
+ # requires need either a bare word or a file name
+ $file =~ s{::}{/}gsxm;
+ $file .= '.pm';
+ eval {
+ require $file;
+ $name->import();
+ $module = $name;
+ };
+ last if $module;
+ }
+ return $module;
+}
+
+my $plugin_module;
+BEGIN {
+ $plugin_module = load_module( 'Monitoring::Plugin', 'Nagios::Plugin' );
+}
$PROGNAME = "check_memory";
$VERSION = '1.0.1';
$FREECMD = '/usr/bin/free';
$UNIT = 'M';
-my $np = Nagios::Plugin->new(
+my $np = $plugin_module->new(
usage => "Usage: %s [ -w <warning_threshold> ] [ -c <critical_threshold> ]\n"
. ' [ -u <unit> ]',
version => $VERSION,
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