pkg://glibc-headers-2.3.3-27.1.x86_64.rpm:536858/HEADER  downloads

Name        : glibc-headers                Relocations: (not relocateable)
Version     : 2.3.3                             Vendor: Red Hat, Inc.
Release     : 27.1                          Build Date: Thu Oct 28 15:26:14 2004
Install date: (not installed)               Build Host: dolly.build.redhat.com
Group       : Development/Libraries         Source RPM: glibc-2.3.3-27.1.src.rpm
Size        : 1892560                          License: LGPL
Packager    : Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>
Summary     : Header files for development using standard C libraries.
Description :
The glibc-headers package contains the header files necessary
for developing programs which use the standard C libraries (which are
used by nearly all programs).  If you are developing programs which
will use the standard C libraries, your system needs to have these
standard header files available in order to create the
executables.

Install glibc-headers if you are going to develop programs which will
use the standard C libraries.