-# sockets.m4 serial 2
-dnl Copyright (C) 2008 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.
AC_DEFUN([gl_SOCKETS],
[
- 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 "$gl_cv_func_wsastartup" = "yes"; then
- AC_DEFINE([WINDOWS_SOCKETS], 1, [Define if WSAStartup is needed.])
- LIBSOCKET='-lws2_32'
- fi
- else
- dnl Unix API.
- dnl Solaris has most socket functions in libsocket.
- AC_CACHE_CHECK([whether setsockopt requires -lsocket], [gl_cv_lib_socket], [
- gl_cv_lib_socket=no
- AC_TRY_LINK([extern
-#ifdef __cplusplus
-"C"
-#endif
-char setsockopt();], [setsockopt();],
- [],
- [gl_save_LIBS="$LIBS"
- LIBS="$LIBS -lsocket"
- AC_TRY_LINK([extern
-#ifdef __cplusplus
-"C"
-#endif
-char setsockopt();], [setsockopt();],
- [gl_cv_lib_socket=yes])
- LIBS="$gl_save_LIBS"
- ])
- ])
- if test $gl_cv_lib_socket = yes; then
- LIBSOCKET='-lsocket'
- fi
- fi
- AC_SUBST([LIBSOCKET])
+ AC_REQUIRE([AC_C_INLINE])
+ AC_REQUIRE([gl_SOCKETLIB])
gl_PREREQ_SOCKETS
])