build-sys: default to /lib64 for ${exec_prefix}/lib64

We already default to /lib for the default $exec_prefix, but the current
configure does not care about /lib64 although the use-case is exactly
same as for /lib.

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/configure.ac b/configure.ac
index 995d1d70e1da0f92e8eebe01a77bdf58d9446f0f..cf43b3c38b799bce0bd9323102a54a25d97eba91 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -70,6 +70,7 @@ AS_CASE([$exec_prefix:$prefix],
    AS_CASE([$bindir],  ['${exec_prefix}/bin'],  [bindir=/bin;   AC_MSG_NOTICE([  --bindir defaults to /bin])  ])
    AS_CASE([$sbindir], ['${exec_prefix}/sbin'], [sbindir=/sbin; AC_MSG_NOTICE([  --sbindir defaults to /sbin])])
    AS_CASE([$libdir],  ['${exec_prefix}/lib'],  [libdir=/lib;   AC_MSG_NOTICE([  --libdir defaults to /lib])  ])
+   AS_CASE([$libdir],  ['${exec_prefix}/lib64'],[libdir=/lib64; AC_MSG_NOTICE([  --libdir defaults to /lib64])  ])
   ]
 )