Created attachment 423438 [details, diff] gd-2.1.1-r1.ebuild.patch GDlib has no “tiff” USE flag. The TIFF support currently depends on the presence of media-libs/tiff during build process. My patch adds the “tiff” USE flag and enables it by default because I thought this is the best way to not break systems that are using the TIFF support. Everyone else would see that the update installs media-libs/tiff and can disable tiff support before updating. I would recommend to disabled it by default after a few stable version updates.
well that's an embarrassing bug. i've added your patch to the tree now. thanks! https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=90fc13faf6754d1029d12c05cec69cd8495943eb