I am having an issue with an up to date SLES 9.3 server and the latest release of Nagios Plugins. I have the proper devel packages installed as shown below but the plugins still will not build: if gcc -DLOCALEDIR=\"/usr/local/nagios/share/locale\" -DHAVE_CONFIG_H -I. -I. -I.. -I.. -I../lib -I../gl -I../intl -I/usr/local/ssl/include -I/usr/local/ssl/include -g -O2 -MT check_http.o -MD -MP -MF ".deps/check_http.Tpo" -c -o check_http.o check_http.c; \ then mv -f ".deps/check_http.Tpo" ".deps/check_http.Po"; else rm -f ".deps/check_http.Tpo"; exit 1; fi /bin/sh ../libtool --tag=CC --mode=link gcc -g -O2 -L. -L/usr/local/ssl/lib -o check_http check_http.o sslutils.o netutils.o utils.o ../lib/libnagiosplug.a ../gl/libgnu.a -lnsl -lresolv -lssl -lcrypto gcc -g -O2 -o check_http check_http.o sslutils.o netutils.o utils.o -L/root/scratch/nagios-plugins-1.4.10/plugins -L/usr/local/ssl/lib ../lib/libnagiosplug.a ../gl/libgnu.a -lnsl -lresolv -lssl -lcrypto /usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o)(.text+0x247): In function `dlfcn_bind_func': : undefined reference to `dlsym' /usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o)(.text+0x293): In function `dlfcn_bind_func': : undefined reference to `dlerror' /usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o)(.text+0x323): In function `dlfcn_bind_var': : undefined reference to `dlsym' /usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o)(.text+0x391): In function `dlfcn_bind_var': : undefined reference to `dlerror' /usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o)(.text+0x3eb): In function `dlfcn_unload': : undefined reference to `dlclose' /usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o)(.text+0x485): In function `dlfcn_load': : undefined reference to `dlopen' /usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o)(.text+0x4e5): In function `dlfcn_load': : undefined reference to `dlclose' /usr/local/ssl/lib/libcrypto.a(dso_dlfcn.o)(.text+0x50e): In function `dlfcn_load': : undefined reference to `dlerror' ~/scratch/nagios-plugins-1.4.10 # rpm -qa | grep ssl openssl-0.9.7d-15.32 openssl-devel-0.9.7d-15.32 I cannot see a requirement in ./configure for a newer version. I tried to use gnutls and met with the same sort of issue. I feel it is something obvious I am missing. Any help would be appreciated. Best Regards, Mark L. Potter Systems Engineer Academy Sports & Outdoors