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66 lines
1.8 KiB
Plaintext
66 lines
1.8 KiB
Plaintext
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# sockets.m4 serial 2
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dnl Copyright (C) 2008 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_SOCKETS],
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[
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gl_PREREQ_SYS_H_WINSOCK2 dnl for HAVE_WINSOCK2_H
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LIBSOCKET=
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if test $HAVE_WINSOCK2_H = 1; then
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dnl Native Windows API (not Cygwin).
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AC_CACHE_CHECK([if we need to call WSAStartup in winsock2.h and -lws2_32],
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[gl_cv_func_wsastartup], [
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gl_save_LIBS="$LIBS"
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LIBS="$LIBS -lws2_32"
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AC_TRY_LINK([
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#ifdef HAVE_WINSOCK2_H
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# include <winsock2.h>
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#endif], [
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WORD wVersionRequested = MAKEWORD(1, 1);
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WSADATA wsaData;
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int err = WSAStartup(wVersionRequested, &wsaData);
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WSACleanup ();],
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gl_cv_func_wsastartup=yes, gl_cv_func_wsastartup=no)
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LIBS="$gl_save_LIBS"
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])
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if test "$gl_cv_func_wsastartup" = "yes"; then
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AC_DEFINE([WINDOWS_SOCKETS], 1, [Define if WSAStartup is needed.])
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LIBSOCKET='-lws2_32'
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fi
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else
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dnl Unix API.
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dnl Solaris has most socket functions in libsocket.
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AC_CACHE_CHECK([whether setsockopt requires -lsocket], [gl_cv_lib_socket], [
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gl_cv_lib_socket=no
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AC_TRY_LINK([extern
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#ifdef __cplusplus
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"C"
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#endif
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char setsockopt();], [setsockopt();],
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[],
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[gl_save_LIBS="$LIBS"
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LIBS="$LIBS -lsocket"
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AC_TRY_LINK([extern
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#ifdef __cplusplus
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"C"
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#endif
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char setsockopt();], [setsockopt();],
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[gl_cv_lib_socket=yes])
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LIBS="$gl_save_LIBS"
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])
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])
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if test $gl_cv_lib_socket = yes; then
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LIBSOCKET='-lsocket'
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fi
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fi
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AC_SUBST([LIBSOCKET])
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gl_PREREQ_SOCKETS
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])
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# Prerequisites of lib/sockets.c.
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AC_DEFUN([gl_PREREQ_SOCKETS], [
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:
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])
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