The remote host is missing an update as announced via advisory SSA:2006-130-01.
New Apache packages are available for Slackware 8.1, 9.0, 9.1, 10.0, 10.1, 10.2, and -current to fix a bug with Apache 1.3.35 and glibc that breaks wildcards in Include directives. It may not occur with all versions of glibc, but it has been verified on -current (using an Include within a file already Included causes a crash), so better to patch it and reissue these packages just to be sure. My apologies if the last batch of updates caused anyone undue grief... they worked here with my (too simple?) config files. Note that if you use mod_ssl, you'll also require the mod_ssl package that was part of yesterday's release, and on -current you'll need the newest PHP package (if you use PHP). Thanks to Francesco Gringoli for bringing this issue to my attention.