Hi, Does someone know if pam is default installed in FreeBSD 4.2 I think yes, because there is a pam.conf file and some libpam files. But when I try to compile an extension in Php4 the pam_auth the it give this error: *** configure:31534: checking for pam_start in -lpam configure:31553: gcc -o conftest -g -O2 conftest.c -lpam -lpam -ldl -lm -lcrypt 1>&5 /usr/libexec/elf/ld: cannot find -ldl *** I hope someone can help me with this. Kind regards. Geert Houben