New module 'uninorm/u32-normxfrm'.

[gnulib.git] / m4 / sys_socket_h.m4

diff --git a/m4/sys_socket_h.m4 b/m4/sys_socket_h.m4
index b7b18e5..85a0ace 100644 (file)
--- a/m4/sys_socket_h.m4
+++ b/m4/sys_socket_h.m4
@@ -1,4 +1,4 @@
-# sys_socket_h.m4 serial 11
+# sys_socket_h.m4 serial 12
 dnl Copyright (C) 2005-2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -71,8 +71,8 @@ AC_DEFUN([gl_HEADER_SYS_SOCKET],
 # Sets and substitutes HAVE_WINSOCK2_H.
 AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2],
 [
-  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
-  AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])
+  m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])])
+  m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])])
   AC_CHECK_HEADERS_ONCE([sys/socket.h])
   if test $ac_cv_header_sys_socket_h != yes; then
     dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
@@ -100,7 +100,6 @@ AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR],
 
 AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS],
 [
-  AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for GNULIB_CLOSE
   GNULIB_SOCKET=0;      AC_SUBST([GNULIB_SOCKET])
   GNULIB_CONNECT=0;     AC_SUBST([GNULIB_CONNECT])
   GNULIB_ACCEPT=0;      AC_SUBST([GNULIB_ACCEPT])