Don't rely on FindBin module to locate utils.pm

As the FindBin module doesn't work with ePN, set the path to utils.pm
explicitly at build time.  Keep using FindBin additionally, so that the
plugins can also be executed from the build directory.

Closes #1271.

plugins-scripts/Makefile.am

@@ -26,7 +26,8 @@ EXTRA_DIST=check_breeze.pl check_disk_smb.pl check_flexlm.pl check_ircd.pl \
 EDIT = sed \
   -e 's|[@]NP_VERSION[@]|$(NP_VERSION)|g' \
   -e 's|[@]TRUSTED_PATH[@]|$(with_trusted_path)|g' \
-  -e 's|[@]PERL[@]|$(PERL)|g'
+  -e 's|[@]PERL[@]|$(PERL)|g' \
+  -e 's|[@]libexecdir[@]|$(libexecdir)|g'
 
 TESTS_ENVIRONMENT=perl -I $(top_builddir) -I $(top_srcdir)
 

plugins-scripts/check_breeze.pl

@@ -6,6 +6,7 @@ use Getopt::Long;
 use vars qw($opt_V $opt_h $opt_w $opt_c $opt_H $opt_C $PROGNAME);
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw(%ERRORS &print_revision &support &usage);
 
 $PROGNAME = "check_breeze";

plugins-scripts/check_disk_smb.pl

@@ -26,6 +26,7 @@ use vars qw($opt_P $opt_V $opt_h $opt_H $opt_s $opt_W $opt_u $opt_p $opt_w $opt_
 use vars qw($PROGNAME);
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw($TIMEOUT %ERRORS &print_revision &support &usage);
 
 sub print_help ();

plugins-scripts/check_file_age.pl

@@ -27,6 +27,7 @@ use File::stat;
 use vars qw($PROGNAME);
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw (%ERRORS &print_revision &support);
 
 sub print_help ();

plugins-scripts/check_flexlm.pl

@@ -37,6 +37,7 @@ use Getopt::Long;
 use vars qw($opt_V $opt_h $opt_F $opt_t $verbose $PROGNAME);
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw(%ERRORS &print_revision &support &usage);
 
 $PROGNAME="check_flexlm";

plugins-scripts/check_ifoperstatus.pl

@@ -37,6 +37,7 @@ use POSIX;
 use strict;
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw($TIMEOUT %ERRORS &print_revision &support);
 
 use Net::SNMP;

plugins-scripts/check_ifstatus.pl

@@ -34,6 +34,7 @@ use POSIX;
 use strict;
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw($TIMEOUT %ERRORS &print_revision &support);
 
 use Net::SNMP;

plugins-scripts/check_ircd.pl

@@ -51,6 +51,7 @@ use vars qw($opt_V $opt_h $opt_t $opt_p $opt_H $opt_w $opt_c $verbose);
 use vars qw($PROGNAME);
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw($TIMEOUT %ERRORS &print_revision &support &usage);
 
 # ----------------------------------------------------[ Function Prototypes ]--

plugins-scripts/check_mailq.pl

@@ -33,6 +33,7 @@ use vars qw($opt_V $opt_h $opt_v $verbose $PROGNAME $opt_w $opt_c $opt_t
 					%srcdomains %dstdomains);
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw(%ERRORS &print_revision &support &usage );
 
 

plugins-scripts/check_mssql.pl

@@ -31,6 +31,7 @@ use DBD::Sybase;
 use Getopt::Long;
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw($TIMEOUT %ERRORS &print_revision &support);
 use strict;
 

plugins-scripts/check_netdns.pl

@@ -29,6 +29,7 @@ use Getopt::Long;
 use Net::DNS;
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils ;
 
 my $PROGNAME = "check_netdns";

plugins-scripts/check_rpc.pl

@@ -22,6 +22,7 @@
 use strict;
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw($TIMEOUT %ERRORS &print_revision &support);
 use vars qw($PROGNAME);
 my ($verbose,@proto,%prognum,$host,$response,$prognum,$port,$cmd,$progver,$state);

plugins-scripts/check_wave.pl

@@ -5,6 +5,7 @@
 use strict;
 use FindBin;
 use lib "$FindBin::Bin";
+use lib '@libexecdir@';
 use utils qw($TIMEOUT %ERRORS &print_revision &support);
 use vars qw($PROGNAME);
 use Getopt::Long;