Every time you run configure, you must run make again to recompile.
To prevent old configuration information or object files from being used, run these commands before re-running configure:
sh$ rm config.cache
sh$ make clean
If your compile fails with make errors, this can be because you are using the wrong version of make. The behavior of Solaris, FreeBSD, OpenBSD make is slightly different from GNU make. If you have make-related problems, you should use GNU make instead, often installed as gmake.
GNU make version 3.77 is known to work.
If starting Apache with mod_dpsearch module, you're getting the following error: Undefined symbol "pthread_join" (or something similar related to pthreads), try to add the following commmand into httpd.conf file before loading mod_dpsearch.so:
If above information doesn't help you, please feel free to contact DataparkSearch mailing list