** Use apxs to compile on Unix platforms **

This works for me on Linux and AIX:
  apxs -c mod_arm4.c
  apxs -i -n mod_arm4 mod_arm4.la

** Update the mod_arm4.xml transform (under development) ***
 svn co http://svn.apache.org/repos/asf/httpd/mod_arm4/trunk mod_arm4
 cd mod_arm4
 svn co http://svn.apache.org/repos/asf/httpd/docs-build/trunk build
 svn co http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/manual/style style
 cd build
 build.bat (or ./build.sh)