I'm on linux and have a simple helloworld-level Fat-Free Framework php application consisting of a single route to a single view. I am only requiring F3's base.php. Absolutely no sql anything.
When I build a simple yaml file pointing to the index.php and start the dev_appserver, it complains that it can't find pdo_mysql.so but nowhere in the code is mysql referenced. The error message from dev_appserver indicates it is looking for pdo_mysql.so in the appengine-php-extension-master/modules/ directory (where I had previously successfully built gae_runtime_module.so). I have no local php.ini defined.
I can successfully run dev_appserver.py against some simple php file, but as soon as it uses F3, it complains about pdo, curl, json, mysql, mysqli and pdo_mysql.so not being loaded as they are not found even though I'm not using any of these in this simple case.
Any help or pointers would be greatly appreciated,
Chris