diff --git a/configure.in b/configure.in
index 262b62a..dd68dae 100644
--- a/configure.in
+++ b/configure.in
@@ -188,7 +188,6 @@
 	LDFLAGS="$LDFLAGS -L/usr/local/lib"
 	MANTYPE='$(CATMAN)'
 	mansubdir=cat
-	LIBS="$LIBS -lgen -lsocket -lnsl -lresolv"
 	enable_suid_ssh=no
 	;;
 *-*-sysv5*)
@@ -196,7 +195,6 @@
 	LDFLAGS="$LDFLAGS -L/usr/local/lib"
 	MANTYPE='$(CATMAN)'
 	mansubdir=cat
-	LIBS="$LIBS -lgen -lsocket"
 	enable_suid_ssh=no
 	;;
 *-*-sysv*)
@@ -219,13 +217,14 @@
 	rsh_path="/usr/bin/rcmd"
 	AC_DEFINE(HAVE_SCO_PROTECTED_PW)
 	AC_DEFINE(DISABLE_SHADOW)
+	AC_DEFINE(HAVE_BOGUS_SYS_QUEUE_H)
 	;;
 *-*-sco3.2v5*)
 	CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 	LDFLAGS="$LDFLAGS -L/usr/local/lib"
 	MANTYPE='$(CATMAN)'
 	mansubdir=cat
-	LIBS="$LIBS -lgen -lsocket -lprot -lx -ltinfo -lm"
+	LIBS="$LIBS -lprot -lx -ltinfo -lm"
 	no_dev_ptmx=1
 	rsh_path="/usr/bin/rcmd"
 	AC_DEFINE(HAVE_SCO_PROTECTED_PW)
@@ -284,6 +283,14 @@
 
 
 # Checks for libraries.
+if test -z "$no_libsocket" ; then
+	AC_CHECK_LIB(nsl, yp_match, , )
+fi
+if test -z "$no_libnsl" ; then
+	AC_CHECK_LIB(socket, main, , )
+fi
+
+AC_CHECK_LIB(gen, getspnam, LIBS="$LIBS -lgen")
 AC_CHECK_LIB(z, deflate, ,AC_MSG_ERROR([*** zlib missing - please install first ***]))
 AC_CHECK_LIB(util, login, AC_DEFINE(HAVE_LIBUTIL_LOGIN) LIBS="$LIBS -lutil")
 
@@ -295,12 +302,13 @@
 	]
 )
 
-if test -z "$no_libsocket" ; then
-	AC_CHECK_LIB(nsl, yp_match, , )
-fi
-if test -z "$no_libnsl" ; then
-	AC_CHECK_LIB(socket, main, , )
-fi
+dnl UnixWare 2.x
+AC_CHECK_FUNC(strcasecmp, 
+	[], [ AC_CHECK_LIB(resolv, strcasecmp, LIBS="$LIBS -lresolv") ]
+)
+AC_CHECK_FUNC(utimes, 
+	[], [ AC_CHECK_LIB(c89, utimes, LIBS="$LIBS -lc89") ]
+)
 
 # Checks for header files.
 AC_CHECK_HEADERS(bstring.h endian.h floatingpoint.h getopt.h lastlog.h limits.h login.h login_cap.h maillock.h netdb.h netgroup.h netinet/in_systm.h paths.h poll.h pty.h shadow.h security/pam_appl.h sys/bitypes.h sys/bsdtty.h sys/cdefs.h sys/poll.h sys/queue.h sys/select.h sys/stat.h sys/stropts.h sys/sysmacros.h sys/time.h sys/ttcompat.h sys/un.h stddef.h time.h ttyent.h usersec.h util.h utmp.h utmpx.h vis.h)
@@ -801,6 +809,15 @@
 	AC_DEFINE(HAVE_STRUCT_ADDRINFO)
 fi
 
+# If we don't have int64_t then we can't compile sftp-server.  So don't
+# even attempt to do it. 
+if test "x$ac_cv_have_int64_t" = "xno" -a \
+	"x$ac_cv_sizeof_long_int" != "x8" -a \
+	"x$ac_cv_sizeof_long_long_int" = "x0" ; then
+	NO_SFTP='#'
+	AC_SUBST(NO_SFTP)
+fi
+
 dnl Checks for structure members
 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmp.h, HAVE_HOST_IN_UTMP)
 OSSH_CHECK_HEADER_FOR_FIELD(ut_host, utmpx.h, HAVE_HOST_IN_UTMPX)
@@ -1633,3 +1650,9 @@
 	echo "/dev/random in future versions of their OS."
 	echo ""
 fi
+
+if test ! -z "$NO_SFTP"; then
+	echo "sftp-server will be disabled.  Your compiler does not support"
+	echo "64bit integers."
+	echo ""
+fi