So, I'm trying to fix a spec file right now for rpmbuild.
On Suse, it looks like the X11 library development package is named "xorg-x11-libX11-devel" while on CentOS it seems to be named "libX11-devel". In an ideal universe, I could just use some magical binary operator to require one or the other. Something like:
BuildRequires: xorg-x11-libX11-devel || libX11-devel
Does something like that exist, or do I need to script some sort of zainy thing to get this to work?