you're getting this template-based bug because the package in the subject hit a "header present but cannot be compiled" during ./configure execution. If you check my blog post in the URL, this is going to be a problem when autoconf-2.64 will be used so you should pay attention and consider fixing the issue (or let upstream know about it at least).
Thank you for your consideration. Share and enjoy!
media-sound/alsamixergui-0.9.0.1.2-r4:20081120-202739.log:configure: WARNING: FL/Fl.H: present but cannot be compiled
fixed without revbump, thanks.