gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / m4 / sockets.m4

diff --git a/m4/sockets.m4 b/m4/sockets.m4
index db71bf1..b407391 100644 (file)
--- a/m4/sockets.m4
+++ b/m4/sockets.m4
@@ -1,5 +1,5 @@
-# sockets.m4 serial 5
-dnl Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+# sockets.m4 serial 7
+dnl Copyright (C) 2008-2013 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -7,80 +7,7 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_SOCKETS],
 [
   AC_REQUIRE([AC_C_INLINE])
-
-  gl_PREREQ_SYS_H_WINSOCK2 dnl for HAVE_WINSOCK2_H
-  LIBSOCKET=
-  if test $HAVE_WINSOCK2_H = 1; then
-    dnl Native Windows API (not Cygwin).
-    AC_CACHE_CHECK([if we need to call WSAStartup in winsock2.h and -lws2_32],
-                   [gl_cv_func_wsastartup], [
-      gl_save_LIBS="$LIBS"
-      LIBS="$LIBS -lws2_32"
-      AC_TRY_LINK([
-#ifdef HAVE_WINSOCK2_H
-# include <winsock2.h>
-#endif], [
-        WORD wVersionRequested = MAKEWORD(1, 1);
-        WSADATA wsaData;
-        int err = WSAStartup(wVersionRequested, &wsaData);
-        WSACleanup ();],
-        gl_cv_func_wsastartup=yes, gl_cv_func_wsastartup=no)
-      LIBS="$gl_save_LIBS"
-    ])
-    if test "$gl_cv_func_wsastartup" = "yes"; then
-      AC_DEFINE([WINDOWS_SOCKETS], [1], [Define if WSAStartup is needed.])
-      LIBSOCKET='-lws2_32'
-    fi
-  else
-    dnl Unix API.
-    dnl Solaris has most socket functions in libsocket.
-    dnl Haiku has most socket functions in libnetwork.
-    dnl BeOS has most socket functions in libnet.
-    AC_CACHE_CHECK([for library containing setsockopt], [gl_cv_lib_socket], [
-      gl_cv_lib_socket=
-      AC_TRY_LINK([extern
-#ifdef __cplusplus
-"C"
-#endif
-char setsockopt();], [setsockopt();],
-        [],
-        [gl_save_LIBS="$LIBS"
-         LIBS="$gl_save_LIBS -lsocket"
-         AC_TRY_LINK([extern
-#ifdef __cplusplus
-"C"
-#endif
-char setsockopt();], [setsockopt();],
-           [gl_cv_lib_socket="-lsocket"])
-         if test -z "$gl_cv_lib_socket"; then
-           LIBS="$gl_save_LIBS -lnetwork"
-           AC_TRY_LINK([extern
-#ifdef __cplusplus
-"C"
-#endif
-char setsockopt();], [setsockopt();],
-             [gl_cv_lib_socket="-lnetwork"])
-           if test -z "$gl_cv_lib_socket"; then
-             LIBS="$gl_save_LIBS -lnet"
-             AC_TRY_LINK([extern
-#ifdef __cplusplus
-"C"
-#endif
-char setsockopt();], [setsockopt();],
-               [gl_cv_lib_socket="-lnet"])
-           fi
-         fi
-         LIBS="$gl_save_LIBS"
-        ])
-      if test -z "$gl_cv_lib_socket"; then
-        gl_cv_lib_socket="none needed"
-      fi
-    ])
-    if test "$gl_cv_lib_socket" != "none needed"; then
-      LIBSOCKET="$gl_cv_lib_socket"
-    fi
-  fi
-  AC_SUBST([LIBSOCKET])
+  AC_REQUIRE([gl_SOCKETLIB])
   gl_PREREQ_SOCKETS
 ])