The docs at the tail of a PHP emerge say to add the flag -D PHP to Apache, but I think this might instead need to be -D PHP4? Reproducible: Always Steps to Reproduce: 1.emerge PHP 2. 3.
This is a potential ebuild change.
No, it's definetly '-D PHP' in all of the install to keep consistant. At one stage Apache1 and Apache2 said different things, and this was changed so that both said '-D PHP'.