Check attached build log.
Created attachment 193515 [details] Build log
This is strange, since dvipng depends on virtual/latex-base which should pull in texlive-core. Do you have texlive-core installed? Does /usr/lib*/libkpathsea.* exist?
config.log will probably help too
Ah this starts to get fun... I have virtual/latex-base instealled; I don't have texlive-core (it was removed by some blocker and now it's not merging back); Portage still tries to build dvipng...
How about if you add --deep? Seems like that should pull it in.
Yeah okay --deep should fix it, thanks Zac :)