With accept_keywords amd64 and "emerge wxmaxima", I get: Fatal Error: Mismatch between the program and library build versions detected. The library used 3.0 (wchar_t,compiler with C++ ABI 1009,wx containers,compatible with 2.8), and your program used 3.0 (wchar_t,compiler with C++ ABI 1010,wx containers,compatible with 2.8). zsh: abort wxmaxima I didn't have neither maxima or wxmaxima installed, so this a version check is needed in the ebuild.
https://forums.gentoo.org/viewtopic-p-7956058.html?sid=dff9e2091e6a7cae8a04cc267373d04f
/me should do `emerge -e @world --newuse --deep` more often