1 files changed, 22 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 5292798a..1a0870b7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -642,6 +642,28 @@ AM_CONDITIONAL(USE_MS_LIB_TOOL, [test "x$ac_cv_use_ms_lib_tool" = "xyes"])
 MHD_CHECK_SOCKET_SHUTDOWN_TRIGGER([AC_DEFINE([HAVE_LISTEN_SHUTDOWN],[1],[can use shutdown on listen sockets])])
 AM_CONDITIONAL([HAVE_LISTEN_SHUTDOWN], [test "x$mhd_cv_host_shtdwn_trgr_select" = "xyes"])
 
+# SENDMSG. Should we check for SCM_RIGHTS instead?
+# https://lists.x.org/archives/xorg-devel/2013-November/038687.html
+AC_MSG_CHECKING([whether sendmsg is available])
+AC_SEARCH_LIBS(sendmsg, socket, AC_DEFINE([HAVE_SENDMSG],1,[Define if your platform supports sendmsg]))
+AC_MSG_CHECKING([whether writev is available])
+AC_CHECK_FUNCS([writev])
+
+# check MSG_MORE defined
+AC_MSG_CHECKING([whether MSG_MORE is defined])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <sys/types.h>
+#include <sys/socket.h>
+]],[[return MSG_MORE;]]
+    )],
+    [
+      AC_MSG_RESULT(yes)
+      AC_DEFINE(HAVE_MSG_MORE, [1], [have MSG_MORE])
+    ],
+    [
+      AC_MSG_RESULT(no)
+    ])
+
 # set GCC options
 # use '-fno-strict-aliasing', but only if the compiler
 # and linker can take it