emerge -u world -p These are the packages that I would merge, in order. Calculating world dependencies | !!! Error: couldn't find match for =media-libs/libpng-1.2.1 in media-libs/netpbm-9.12-r2 ================= Shouldn't be: =media-libs/libpng-1.2.1* ?
The ebuild says >=media-libs/libpng-1.2.1 your error is strange. What version of portage are you running?
I don't see this problem either. Feel free to reopen if your problem persists.