libepoxy-devel contains the header files for developing applications that want to make use of libepoxy.
acquired package info from repodata DB: repodata/f1f85c23079e7764ad00378a9fc5d660b89a03657290e75426caf7be5b7da462-primary.sqlite.bz2
The libX11-devel package contains libraries and header files for libX11.
The libglvnd-devel package contains libraries and header files for developing applications that use libglvnd.
A library for handling OpenGL function pointer management.