This package is only used for internal building of multilib aware
packages, like gcc, due to a technical limitation in the distribution
build environment. Any package which needs both 32-bit and 64-bit
runtimes at the same time must install glibc32 (marked as a 64-bit
package) to access the 32-bit development files during a 64-bit build.
This package is not supported or intended for use outside of the
distribution build enviroment. Regular users can install both 32-bit and
64-bit runtimes and development file without any problems.