LinuxQuestions.org - nagios installing problem ?

hi ,

i am installing nagios-3.2 in rhel 5 . it show the errors in make all command.........

Quote:

[root@ns1 nagios-3.2.3]# make all
cd ./base && make
make[1]: Entering directory `/root/Desktop/nagios-3.2.3/base'
gcc -g -O2 -DHAVE_CONFIG_H -DNSCORE -o nagios nagios.c broker.o nebmods.o checks.o config.o commands.o events.o flapping.o logging.o macros-base.o netutils.o notifications.o sehandlers.o skiplist.o utils.o retention-base.o xretention-base.o comments-base.o xcomments-base.o objects-base.o xobjects-base.o statusdata-base.o xstatusdata-base.o perfdata-base.o xperfdata-base.o downtime-base.o xdowntime-base.o -Wl,-export-dynamic -lm -lpthread
nebmods.o: In function `neb_unload_module':
/root/Desktop/nagios-3.2.3/base/nebmods.c:368: undefined reference to `dlclose'
nebmods.o: In function `neb_load_module':
/root/Desktop/nagios-3.2.3/base/nebmods.c:223: undefined reference to `dlopen'
/root/Desktop/nagios-3.2.3/base/nebmods.c:254: undefined reference to `dlsym'
/root/Desktop/nagios-3.2.3/base/nebmods.c:271: undefined reference to `dlsym'
/root/Desktop/nagios-3.2.3/base/nebmods.c:304: undefined reference to `dlsym'
/root/Desktop/nagios-3.2.3/base/nebmods.c:230: undefined reference to `dlerror'
collect2: ld returned 1 exit status
make[1]: *** [nagios] Error 1
make[1]: Leaving directory `/root/Desktop/nagios-3.2.3/base'
make: *** [all] Error 2

what is the proglem........???