libwww troubles

As I told you yesterday, I've troubles with my gentoo box. Because of some incompatibilities between php5 and xoops, I wanted to roll back to php4. Emerge failed (don't know why anymore, I think it was mysqlclient or something like that), but on Gentoo Forums, they suggest a revdep-rebuild. One of those packages to rebuild was libwww. That one didn't rebuild, and again on Gentoo Forums they suggested to unmerge and re-emerge it, so I did, but only the first part of it succeeded: unmerging. Emerging gives output like this:

So it seems aclocal can't be found. A lookup pointed that I have aclocal 1.5, 1.7, 1.8 and 1.9. I tried to create a symlink named "aclocal" to aclocal-1.9. This results in lots of warnings when emerging libwww, but it compiles. The big problem is, since then, I have crashes (segfaults) of firefox and thunderbird when I'm viewing some sites (like The Register). I created a new symlink to aclocal-1.5, wich made libwww emerging with lots less warnings, but the crashes remain. I searched around in bugzilla and forums but no solution. I'll create a new bugreport, let's hope somethings comes out of it. I'll keep you on touch!