Use new-style CHECK_TYPE to avoid modifying confdefs.h. Include sys/types.h
Fixes #636431.
diff --git a/configure.in b/configure.in
index 07f452d..2bfe8c3 100644
--- a/configure.in
+++ b/configure.in
@@ -2445,25 +2445,16 @@
[Define if WINDOW in curses.h offers a field _flags.])
fi
-# THIS MUST BE LAST, IT CAN BREAK OTHER TESTS!
-# Add sys/socket.h to confdefs.h
-cat >> confdefs.h <<\EOF
+AC_CHECK_TYPE(socklen_t,,
+ AC_DEFINE(socklen_t,int,
+ Define to `int' if <sys/socket.h> does not define.),[
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
-EOF
-AC_CHECK_TYPE(socklen_t, int)
-
-#AC_MSG_CHECKING(for Modules/Setup)
-#if test ! -f Modules/Setup ; then
-# if test ! -d Modules ; then
-# mkdir Modules
-# fi
-# cp "$srcdir/Modules/Setup.dist" Modules/Setup
-# AC_MSG_RESULT(creating)
-#else
-# AC_MSG_RESULT(already exists)
-#fi
+])
AC_SUBST(THREADHEADERS)