--- configure.in.orig   2006-01-05 18:19:35.000000000 -0500
+++ configure.in        2006-01-05 20:57:04.000000000 -0500
@@ -791,13 +791,24 @@
                fi
        ;;
 esac
-AC_CHECK_HEADERS(shadow.h netinet/tcp.h netinet/in_systm.h netinet/in_ip.h)
+AC_CHECK_HEADERS(shadow.h netinet/in_systm.h netinet/in_ip.h)
 AC_CHECK_HEADERS(nss.h nss_common.h nsswitch.h ns_api.h sys/security.h security/pam_appl.h)
 AC_CHECK_HEADERS(stropts.h poll.h)
 AC_CHECK_HEADERS(sys/capability.h syscall.h sys/syscall.h)
 AC_CHECK_HEADERS(sys/acl.h sys/attributes.h attr/xattr.h sys/xattr.h sys/extattr.h sys/uio.h)
 AC_CHECK_HEADERS(sys/cdefs.h glob.h)
 
+AC_CHECK_HEADERS(netinet/tcp.h,,,[[
+#include <sys/types.h>
+#if HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#include <netinet/in.h>
+#if HAVE_NETINET_IN_SYSTM_H
+#include <netinet/in_systm.h>
+#endif
+]])
+
 AC_CHECK_HEADERS(netinet/ip.h,,,[[
 #include <sys/types.h>
 #if HAVE_SYS_SOCKET_H