gtkmathview-0.8.0 fails to build with GCC 4.4 due to a missing include. The attached patch adds the necessary header.
Created attachment 189421 [details, diff]
Patch to add the missing headers.
+ 10 May 2009; Samuli Suominen <email@example.com>
+ gtkmathview-0.8.0.ebuild, +files/gtkmathview-0.8.0-gcc44.patch:
+ Fix compile with GCC 4.4 wrt #267472, thanks to John Keeping.
But I'm leaving this bug open in case gnome@ wants to take some extra steps (like, forward this to upstream).
This is already in upstream svn: