So, this bit of code in configure.in looks rather broken, at least when you are building with MIT kerberos. if test "$with_krb" != "no"; then dnl Do we need DES for kerberos? AC_ARG_WITH(krbdes,[ --with-krbdes use Kerberos DES implementation [ yes]]], with_krbdes="$withval", with_krbdes="yes") if test "$with_krbdes" = "yes"; then AC_CHECK_LIB(des,des_ecb_encrypt, if test "$with_statickrb" = "yes"; then KRB_LIBS="$with_krb/lib/libdes.a" else KRB_LIBS="-ldes" fi, AC_MSG_ERROR([The Kerberos DES library is required for Kerberos support. You might want --with-auth=unix.])) fi fi First, --with-krbdes is not documented in configure --help at all. Second, the with_krbdes defaults to "yes" and does a test link against libdes, which last existed in kth krb4 but certainly doesn't exist in in MIT Kerberos 1.3 and newer (not sure if it exists in Heimdal K5). Also, the error message when the link fails suggests --with-auth=unix, which is also not documented in configure --help and is probably obsolete. Can we just get this entire check ripped out? -- Huaqing Zheng Beer and Code Wrangler at Large ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html