configure: Restore "x" in "[$]WITHVAL_$1" comparison
commit0dee9f79a72025a05a28b269475e9f31cae9e6ef
authorKalle Olavi Niemitalo <kon@iki.fi>
Sat, 30 Apr 2011 22:24:40 +0000 (1 01:24 +0300)
committerKalle Olavi Niemitalo <Kalle@Pulska.kon.iki.fi>
Sat, 30 Apr 2011 23:27:19 +0000 (1 02:27 +0300)
tree2d9edb8b95fa8b9e61e28574bdf76560482a3927
parent2d8fd9cecfc7c71ade541f9a0593a62244e0bdc8
configure: Restore "x" in "[$]WITHVAL_$1" comparison

Fix a minor bug introduced in commit
de45a1df516deee13fe002a0f71678a2ce46cd73 on 2005-07-21.
Before that, EL_CHECK_OPTIONAL_LIBRARY used to do this:

if test -n "$withval" && test "x$withval" != xno; then
AC_MSG_ERROR([$2 not found])
fi

It was then changed to look in "[$]WITHVAL_$1" rather than "$withval",
but the initial "x" was lost in that change.  Restore it.
configure.in