diff --git a/configure.ac b/configure.ac
index 57a60647a..cde95ed09 100644
--- a/configure.ac
+++ b/configure.ac
@@ -397,10 +397,6 @@ fi
 if test "x$enable_dap" = xyes; then
    AC_DEFINE([USE_DAP], [1], [if true, build DAP Client])
    AC_DEFINE([ENABLE_DAP], [1], [if true, build DAP Client])
-#AC_CHECK_HEADER(sys/socket.h, ,AC_DEFINE([NO_SYS_SOCKET_H], [], [no sys/socket.h]))
-#AC_CHECK_HEADER(socket.h, ,AC_DEFINE([NO_SOCKET_H], [], [no socket.h]))
-AC_CHECK_HEADERS([sys/socket.h socket.h])
-AC_CHECK_TYPES([socklen_t])
 fi
 
 if test "x$enable_dap_remote_tests" = xyes; then
diff --git a/libdap2/ncdap.h b/libdap2/ncdap.h
index 1a316e5c5..b3ca46071 100644
--- a/libdap2/ncdap.h
+++ b/libdap2/ncdap.h
@@ -15,16 +15,6 @@
 #include <string.h>
 #include <stdio.h>
 
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#elif defined HAVE_SOCKET_H
-#include <socket.h>
-#endif
-
-#ifndef HAVE_SOCKLEN_T
-typedef int socklen_t;
-#endif
-
 #include "ncbytes.h"
 #include "nclist.h"
 #include "nchashmap.h"