compucated - 2011-12-05

There is the rename_function() within "APD" which has been broken since ~2004. If you try and build it on PHP 5.3 you'll get this error:
'struct _zend_compiler_globals' has no member named 'extended_info'

This is a really easy error to fix, just change the lines in php_screw.c :
GC(extended_info) = 1;
to
CG(compiler_options) |= ZEND_COMPILE_EXTENDED_INFO;