Hi, I trying to install nginx with an external module:
http://wiki.nginx.org/HttpSubsModule

but I have always this errors during the ./configure command:
checking for md5 in system md library ... not found
checking for md5 in system md5 library ... not found
checking for sha1 in system md library ... not found
checking for POSIX semaphores ... not found
checking for setproctitle() ... not found
checking for SO_ACCEPTFILTER ... not found
checking for SO_SETFIB ... not found
checking for dlopen() ... not found
checking for F_NOCACHE ... not found
checking for directio() ... not found
checking for F_READAHEAD ... not found
checking for /dev/poll ... not found
checking for kqueue ... not found
checking for crypt() ... not found

can you help me, please?