Windows build broken

This has been reported before, but there is no harm in remiding people. I get errors in main/main.c lines 290 and 292 (initializer is not a constant). The trouble is that default_value gets expanded to default_value, sizeof(default_value)-1 in zend_ini.h and that does not work with getenv() and the rest of things in config.w32.h.in. So we either revert the patch, or fix Zend/zend_ini.h to work with non-constant default values. Other places that use #defines from config.w32.h.in might be broken as well. Edin