case prefix in usr usr 64-bit libraries on bi-arch platforms go in lib

case "$prefix" in
/usr | /usr/)
  # 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
  # Allow earlier configure scripts to handle libc_cv_slibdir, libdir,
  # and libc_cv_localedir.
  test -n "$libc_cv_slibdir" || \
  case $machine in
  sparc/sparc64 | x86_64 | powerpc/powerpc64 | s390/s390-64)
    libc_cv_slibdir="/lib64"
    if test "$libdir" = '${exec_prefix}/lib'; then
      libdir='${exec_prefix}/lib64';
      # Locale data can be shared between 32bit and 64bit libraries
      libc_cv_localedir='${exec_prefix}/lib/locale'
    fi
    ;;
  *)
    libc_cv_slibdir="/lib"
    ;;
  esac
  # Allow the user to override the path with --sysconfdir
  if test $sysconfdir = '${prefix}/etc'; then
    libc_cv_sysconfdir=/etc
  else
    libc_cv_sysconfdir=$sysconfdir
   fi
  libc_cv_rootsbindir="/sbin"
  ;;
esac