dev-cpp/pangomm fails to compile against latest amd64 stable version of libpng (1.4.3). Reproducible: Always
Created attachment 236955 [details] build.log
Created attachment 236957 [details] emerge --info =dev-cpp/pangomm-2.26.0
pangomm doesn't even use libpng, the problem is in your system. did you run the update script in libpng's postinst message? if not, do it now. if that doesn't help, run something like: emerge -1 pango cairo gtk+ libglade and try again.
Confirmed INVALID. I ran into this same issue by neglecting to follow postinst instructions.
Sorry guys, I was pretty sure I had run the script... it seems I was wrong. --- for i in range(42): print("Always double-check everything, before submitting bug report!")