PHP extension

Hello, I'm having problems creating a self-contained PHP extension in C. I've taken the following steps to create a (rather empty) extension, based on the information in README.EXT_SKEL and README.SELF-CONTAINED.... (The following is from memory, so some of the names may be slightly off) First I've build PHP-4.0.3pl1, and then I've entered ext/ and typed: ./ext_skel --modulename=myfoo Then I copied the myfoo/ directory to somewhere else, entered the dir an did a phpize Then I edited the config.m4 file and uncommented the bottom one of the ARG_something thingies, so I could --enable-myfoo=shared. Sorry about being so vague. Next I I ran ./configure make make install Unfortunately 'make install' fails because a myfoo.so hasn't been created. How can this happen, when 'make' runs without errors? A myfoo.lo has been created and a myfoo.la, but no .so. What did I do wrong, and how can I fix it? Cheers, Thomas