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

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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