POSIX threads configure error

[Sebastian Szuber <szuber@man.poznan.pl>]

When I try to configure OpenLDAP 2.0.9 on my system it can't find POSIX threads.
OS is RedHat 7.0 with kernel 2.4.0.

Here are config options:
setenv CPPFLAGS "-I/u1/ldap/local/openssl096a/include -I/u1/ldap/local/db329/include"
setenv LDFLAGS "-L/u1/ldap/local/openssl096a/lib -L/u1/ldap/local/db329/lib"
./configure --prefix=/u1/ldap/openldap209 --with-tls --enable-slapd \
    --enable-cleartext --enable-crypt --enable-modules --enable-aci --enable-dynamic --enable-slurpd

and here config output:
...
checking for _beginthread... no
checking for pthread.h... yes
checking POSIX thread version... final
checking for LinuxThreads pthread.h... yes
checking for GNU Pth pthread.h... no
checking for sched.h... yes
checking for pthread_create in default libraries... no
checking for pthread link with -kthread... no
checking for pthread link with -pthread... no
checking for pthread link with -pthreads... no
checking for pthread link with -mthreads... no
checking for pthread link with -thread... no
checking for pthread link with -lpthread -lmach -lexc -lc_r... no
checking for pthread link with -lpthread -lmach -lexc... no
checking for pthread link with -lpthread -Wl,-woff,85... no
checking for pthread link with -lpthread... no
checking for pthread link with -lc_r... no
checking for pthread link with -threads... no
checking for pthread link with -lpthreads -lmach -lexc -lc_r... no
checking for pthread link with -lpthreads -lmach -lexc... no
checking for pthread link with -lpthreads -lexc... no
checking for pthread link with -lpthreads... no
configure: error: could not link with POSIX Threads

I don't know the cause. Am I lacking some packages?

	S.


-- 

/*
 * Sebastian Szuber, Poznan Supercomputing and Networking Center
 * email: szuber@man.poznan.pl
 * phone: (+48 61) 858-20-34, fax: (+48 61) 852-59-54
 *
 */