While trying to emerge gtkglextmm the dependency gtkmm failed to compile. convert.cc: In constructor 'Glib::IConv::IConv(const std::string&, const std::string&)': convert.cc:51: error: 'g_assert' was not declared in this scope make[5]: *** [convert.lo] Error 1 Reproducible: Always Steps to Reproduce: 1. emerge -v gtkglextmm
Please post your 'emerge --info' and also attach the build log referred to in your error message (the full error message, not the part quoted in this report).
please report which version of glib, glibmm and gtk+ are installed on your system. Please also attach full build.log.