1 files changed, 3 insertions, 1 deletions

diff --git a/configure.ac b/configure.ac
index f9d28b21..27772b33 100644
--- a/configure.ac
+++ b/configure.ac
@@ -136,7 +136,7 @@ AC_SUBST(PTHREAD_CPPFLAGS)
 AC_CHECK_HEADERS([fcntl.h math.h errno.h limits.h stdio.h locale.h sys/stat.h sys/types.h pthread.h],,AC_MSG_ERROR([Compiling libmicrohttpd requires standard UNIX headers files]))
 
 # Check for optional headers
-AC_CHECK_HEADERS([sys/select.h sys/types.h sys/time.h sys/msg.h netdb.h netinet/in.h time.h sys/socket.h sys/mman.h arpa/inet.h])
+AC_CHECK_HEADERS([sys/select.h sys/types.h sys/time.h sys/msg.h netdb.h netinet/in.h netinet/tcp.h time.h sys/socket.h sys/mman.h arpa/inet.h])
 
 # IPv6
 AC_MSG_CHECKING(for IPv6)
@@ -161,6 +161,8 @@ have_inet6=no
 )
 AC_MSG_RESULT($have_inet6)
 
+# TCP_CORK
+AC_CHECK_DECL([TCP_CORK], [], [], [[#include <netinet/tcp.h>]])
 
 # libcurl (required for testing)
 SAVE_LIBS=$LIBS