I've successfully built the module with both apxs and by rebuilding all of Apache 2.0.54 with the "standard" installation of this module (i.e. adding the directions in the INSTALL file). However, after the install, I attempted to run apache and load the module and an error shows up. It says it is unable to load the module because it can't find the symbol "pcre_study", despite the fact that pcre is part of Apache and the header file is in the "include" directory of Apache post-installation. I noticed the header file includes pcre.h by using a relative path to it (i.e. ../../srclib/pcre/pcre.h) and, in order to get apxs to compile the module, I had to change this to just "pcre.h" and then do a -Ipath_to_srclib/pcre.
So, am I doing something wrong or is there a bug with something in the module?