Didn't someone fix this a while ago? VAX running 2.1, latest pkgsrc:

/bin/sh /usr/pkgsrc/www/apache2/work/httpd-2.0.55/libtool --silent 
--mode=link cc    -O2 -I/usr/local/include -I/usr/include  -DNETBSD 
-DAP_HAVE_DESIGNATED_INITIALIZER -I/usr/local/include -I/usr/include 
-I/usr/local/include/apr-0 -I/usr/local/include -I. 
-I/usr/pkgsrc/www/apache2/work/httpd-2.0.55/os/unix 
-I/usr/pkgsrc/www/apache2/work/httpd-2.0.55/server/mpm/prefork 
-I/usr/pkgsrc/www/apache2/work/httpd-2.0.55/modules/http 
-I/usr/pkgsrc/www/apache2/work/httpd-2.0.55/modules/filters 
-I/usr/pkgsrc/www/apache2/work/httpd-2.0.55/modules/proxy 
-I/usr/pkgsrc/www/apache2/work/httpd-2.0.55/include 
-I/usr/pkgsrc/www/apache2/work/httpd-2.0.55/modules/generators 
-I/usr/pkgsrc/www/apache2/work/httpd-2.0.55/server -I/usr/include/openssl 
-I/usr/pkgsrc/www/apache2/work/httpd-2.0.55/modules/dav/main 
-export-dynamic   -L/usr/local/lib -Wl,-R/usr/local/lib -L/usr/lib 
-Wl,-R/usr/lib -o htpasswd  htpasswd.lo   -lz -lssl -lcrypto 
/usr/pkgsrc/www/apache2/work/httpd-2.0.55/srclib/pcre/libpcre.la 
/usr/local/lib/libaprutil-0.la -lexpat /usr/local/lib/libapr-0.la -lm 
-lcrypt -lresolv
/usr/pkgsrc/www/apache2/work/.buildlink/lib/libapr-0.so: undefined 
reference to `pthread_cond_signal'
/usr/pkgsrc/www/apache2/work/.buildlink/lib/libapr-0.so: undefined 
reference to `pthread_create'

...

-- 
As long as people believe in absurdities they will continue to commit
atrocities.  -Voltaire