net-analyzer/pnp4nagios-0.6.4 requires >=dev-lang/php-4.3[gd-external,...] but will also work with php[gd] and so the ebuild should allow both.
Created attachment 238429 [details, diff] patch for current to allow both (gd/gd-external) Maybe there are some better ways to do this, this one works for me
Thanks for the patch!
Fixed in CVS.