+if test "x$with_krb5" != "xno" ; then
+
+ AC_PATH_PROG(krb5_config_command,krb5-config,:,[$PATH:/usr/kerberos/bin:/usr/krb5/bin])
+ if test $krb5_config_command = : ; then
+ AC_MSG_ERROR(krb5-config not found)
+ fi
+
+ ac_save_CPPFLAGS="$CPPFLAGS"
+ ac_save_LDFLAGS="$LDFLAGS"
+ ac_save_LIBS="$LIBS"
+
+ if test -n "$with_krb5"; then
+ if test -x "$with_krb5/bin/krb5-config"; then
+ krb5_config_command="$with_krb5/bin/krb5-config"
+ else
+ krb5_config_command=""
+ fi
+ fi
+
+ dnl
+ dnl find header files
+ dnl
+
+ if test -z "$KRB5_CPPFLAGS"; then
+ TMP_KRB5_CPPFLAGS=""
+ if test -n "$krb5_config_command"; then
+ TMP_KRB5_CPPFLAGS=`$krb5_config_command --cflags gssapi 2>/dev/null`
+ fi
+ if test -z "$TMP_KRB5_CPPFLAGS" -a -n "with_krb5"; then
+ TMP_KRB5_CPPFLAGS="-I$with_krb5/include"
+ fi
+ CPPFLAGS="$CPPFLAGS $TMP_KRB5_CPPFLAGS"
+ AC_CHECK_HEADERS(gssapi.h,
+ [ KRB5_CPPFLAGS="$TMP_KRB5_CPPFLAGS" ])
+ if test -z "$KRB5_CPPFLAGS"; then
+ AC_CHECK_HEADERS(gssapi/gssapi.h,
+ [ KRB5_CPPFLAGS="$TMP_KRB5_CPPFLAGS" ])
+ fi
+ CPPFLAGS="$ac_save_CPPFLAGS"
+ fi
+
+ dnl
+ dnl find libraries
+ dnl
+
+ if test -z "$KRB5_LDFLAGS" -a -n "$krb5_config_command"; then
+ TMP_KRB5_LDFLAGS=`$krb5_config_command --libs gssapi 2>/dev/null`
+ if test -n "$TMP_KRB5_LDFLAGS"; then
+ LIBS="$LIBS $TMP_KRB5_LDFLAGS $LIB_resolv"
+ AC_CHECK_LIB(krb5, krb5_init_context,
+ [ KRB5_LDFLAGS="$TMP_KRB5_LDFLAGS" ])
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ if test "x$with_krb5"="x"; then
+ tmp_lf_inc=""
+ else
+ tmp_lf_inc="-L"
+ fi
+ if test -z "$KRB5_LDFLAGS"; then
+ #try MIT
+ TMP_KRB5_LDFLAGS="$tmp_lf_inc$with_krb5/lib -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err"
+ LIBS="$LIBS $TMP_KRB5_LDFLAGS $LIB_resolv"
+ AC_CHECK_LIB(krb5, krb5_init_context, [ KRB5_LDFLAGS="$TMP_KRB5_LDFLAGS" ])
+ LIBS="$ac_save_LIBS"
+ fi
+
+ if test -z "$KRB5_LDFLAGS"; then
+ #Try Heimdal
+ TMP_KRB5_LDFLAGS="$tmp_lf_inc$with_krb5/lib -lgssapi -lkrb5 -lasn1 -lcrypto -lroken -lcrypt"
+ LIBS="$LIBS $TMP_KRB5_LDFLAGS $LIB_resolv"
+ AC_CHECK_LIB(krb5, krb5_init_context, [ KRB5_LDFLAGS="$TMP_KRB5_LDFLAGS" ])
+ LIBS="$ac_save_LIBS"
+ fi
+
+ if test -z "$KRB5_LDFLAGS"; then
+ #Try Heimdal on OpenBSD
+ TMP_KRB5_LDFLAGS="$tmp_lf_inc$with_krb5/lib -lgssapi -lkrb5 -lasn1 -ldes -lcrypto"
+ LIBS="$LIBS $TMP_KRB5_LDFLAGS $LIB_resolv"
+ AC_CHECK_LIB(krb5, krb5_init_context, [ KRB5_LDFLAGS="$TMP_KRB5_LDFLAGS" ])
+ LIBS="$ac_save_LIBS"
+ fi
+
+ if test -z "$KRB5_LDFLAGS"; then
+ with_krb5=no
+ else
+ AC_DEFINE(KRB5)
+ AC_CHECK_LIB(krb5,
+ krb5_cc_new_unique,
+ [ AC_DEFINE(HAVE_KRB5_CC_NEW_UNIQUE) ])
+
+ # check for Heimdal
+ have_heimdal=""
+ AC_MSG_CHECKING(whether we are using Heimdal)
+ ac_save_CFLAGS="$CFLAGS"
+ CFLAGS="$KRB5_CPPFLAGS"
+ AC_TRY_COMPILE([#include <krb5.h>],
+ [ char *tmp = heimdal_version; ],
+ [ AC_MSG_RESULT(yes)
+ AC_DEFINE(HEIMDAL)
+ have_heimdal=yes ],
+ [ AC_MSG_RESULT(no) ])
+ CFLAGS="$ac_save_CFLAGS"
+
+# If SPNEGO is supported by the gssapi libraries, we shouln't build our support.
+# SPNEGO is supported as of Heimdal 0.7, and MIT 1.5.
+ gssapi_supports_spnego=""
+ AC_MSG_CHECKING(whether the GSSAPI libraries support SPNEGO)
+
+ ac_save_CFLAGS="$CFLAGS"
+ CFLAGS="$KRB5_CPPFLAGS"
+ ac_save_LDFLAGS="$LDFLAGS"
+ if test -n "$with_krb5"; then
+ LDFLAGS="$KRB5_LDFLAGS -Wl,-rpath -Wl,$with_krb5/lib"
+ else
+ LDFLAGS="$KRB5_LDFLAGS"
+ fi
+ AC_TRY_RUN([
+#include <string.h>
+#include <krb5.h>
+#ifdef HEIMDAL
+#include <gssapi.h>
+#else
+#include <gssapi/gssapi.h>
+#endif
+int main(int argc, char** argv)
+{
+ OM_uint32 major_status, minor_status;
+ gss_OID_set mech_set;
+ gss_OID_desc spnego_oid_desc = {6, (void *)"\x2b\x06\x01\x05\x05\x02"};
+ int SPNEGO = 0;
+
+ major_status = gss_indicate_mechs(&minor_status, &mech_set);
+ if (GSS_ERROR(major_status))
+ return 1;
+ else {
+ unsigned int i;
+ for (i=0; i < mech_set->count && !SPNEGO; i++) {
+ gss_OID tmp_oid = &mech_set->elements[i];
+ if (tmp_oid->length == spnego_oid_desc.length &&
+ !memcmp(tmp_oid->elements, spnego_oid_desc.elements,
+ tmp_oid->length)) {
+ SPNEGO = 1;
+ break;
+ }
+ }
+ gss_release_oid_set(&minor_status, &mech_set);
+ return (!SPNEGO);
+ }
+}],
+ [ if test $? -eq 0; then
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(GSSAPI_SUPPORTS_SPNEGO)
+ gssapi_supports_spnego=yes
+ else
+ AC_MSG_RESULT(no)
+ fi],
+ [AC_MSG_RESULT(no)])
+
+ CFLAGS="$ac_save_CFLAGS"
+ LDFLAGS="$ac_save_LDFLAGS"
+
+ if test -z "$gssapi_supports_spnego"; then
+ if test -n "$have_heimdal"; then SPNEGO_SRCS="\
+ spnegokrb5/asn1_MechType.c \
+ spnegokrb5/asn1_MechTypeList.c \
+ spnegokrb5/asn1_ContextFlags.c \
+ spnegokrb5/asn1_NegTokenInit.c \
+ spnegokrb5/asn1_NegTokenTarg.c \
+ spnegokrb5/init_sec_context.c \
+ spnegokrb5/accept_sec_context.c \
+ spnegokrb5/encapsulate.c \
+ spnegokrb5/decapsulate.c \
+ spnegokrb5/external.c"
+ else SPNEGO_SRCS="\
+ spnegokrb5/asn1_MechType.c \
+ spnegokrb5/asn1_MechTypeList.c \
+ spnegokrb5/asn1_ContextFlags.c \
+ spnegokrb5/asn1_NegTokenInit.c \
+ spnegokrb5/asn1_NegTokenTarg.c \
+ spnegokrb5/der_get.c \
+ spnegokrb5/der_put.c \
+ spnegokrb5/der_free.c \
+ spnegokrb5/der_length.c \
+ spnegokrb5/der_copy.c \
+ spnegokrb5/timegm.c \
+ spnegokrb5/init_sec_context.c \
+ spnegokrb5/accept_sec_context.c \
+ spnegokrb5/encapsulate.c \
+ spnegokrb5/decapsulate.c \
+ spnegokrb5/external.c"
+ fi
+ fi
+ fi