dev-perl/wxperl after install has plenty of unresolved non perl lib symbols also it seems like dont respect WX_GTK_VER in ebuild (for me it links to latest wxGTK-3.0) ldd -r /usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so| grep wx libwx_gtk2u_adv-3.0.so.0 => /usr/lib64/libwx_gtk2u_adv-3.0.so.0 (0x00007faafd17c000) libwx_gtk2u_core-3.0.so.0 => /usr/lib64/libwx_gtk2u_core-3.0.so.0 (0x00007faafc881000) libwx_baseu-3.0.so.0 => /usr/lib64/libwx_baseu-3.0.so.0 (0x00007faafc3bf000) undefined symbol: _ZThn776_N17wxGenericListCtrl31GetSizeAvailableForScrollTargetERK6wxSize (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn680_NK10wxVListBox14OnGetRowHeightEm (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase9WriteTextERK8wxString (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase7ReplaceEllRK8wxString (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase6RemoveEll (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase4CopyEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase3CutEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase5PasteEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase4UndoEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase4RedoEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_NK15wxComboCtrlBase7CanUndoEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_NK15wxComboCtrlBase7CanRedoEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase17SetInsertionPointEl (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_NK15wxComboCtrlBase17GetInsertionPointEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_NK15wxComboCtrlBase15GetLastPositionEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase12SetSelectionEll (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_NK15wxComboCtrlBase12GetSelectionEPlS0_ (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_NK15wxComboCtrlBase10IsEditableEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase11SetEditableEb (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase7SetHintERK8wxString (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_NK15wxComboCtrlBase7GetHintEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase10DoSetValueERK8wxStringi (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_NK15wxComboCtrlBase10DoGetValueEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N15wxComboCtrlBase12DoSetMarginsERK7wxPoint (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_NK15wxComboCtrlBase12DoGetMarginsEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_N20wxOwnerDrawnComboBox5ClearEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn696_NK20wxOwnerDrawnComboBox12GetSelectionEPlS0_ (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn1096_NK20wxOwnerDrawnComboBox8GetCountEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn1096_NK20wxOwnerDrawnComboBox9GetStringEj (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn1096_N20wxOwnerDrawnComboBox9SetStringEjRK8wxString (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn1096_NK20wxOwnerDrawnComboBox10FindStringERK8wxStringb (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn1096_NK20wxOwnerDrawnComboBox12GetSelectionEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn1096_N20wxOwnerDrawnComboBox13DoInsertItemsERK21wxArrayStringsAdapterjPPv16wxClientDataType (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn1096_N20wxOwnerDrawnComboBox19DoSetItemClientDataEjPv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn1096_NK20wxOwnerDrawnComboBox19DoGetItemClientDataEj (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn1096_N20wxOwnerDrawnComboBox7DoClearEv (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so) undefined symbol: _ZThn1096_N20wxOwnerDrawnComboBox15DoDeleteOneItemEj (/usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux-thread-multi/auto/Wx/Wx.so)
This looks like gcc-5 fallout. emerge --info please?
Likely fixed by now (the call to setup-wxwindows was missing)