-# sockets.m4 serial 2
-dnl Copyright (C) 2008 Free Software Foundation, Inc.
+# sockets.m4 serial 6
+dnl Copyright (C) 2008, 2009, 2010 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],
[
+ AC_REQUIRE([AC_C_INLINE])
+
gl_PREREQ_SYS_H_WINSOCK2 dnl for HAVE_WINSOCK2_H
LIBSOCKET=
if test $HAVE_WINSOCK2_H = 1; then
[gl_cv_func_wsastartup], [
gl_save_LIBS="$LIBS"
LIBS="$LIBS -lws2_32"
- AC_TRY_LINK([
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#ifdef HAVE_WINSOCK2_H
# include <winsock2.h>
-#endif], [
- WORD wVersionRequested = MAKEWORD(1, 1);
- WSADATA wsaData;
- int err = WSAStartup(wVersionRequested, &wsaData);
- WSACleanup ();],
+#endif]], [[
+ WORD wVersionRequested = MAKEWORD(1, 1);
+ WSADATA wsaData;
+ int err = WSAStartup(wVersionRequested, &wsaData);
+ WSACleanup ();]])],
gl_cv_func_wsastartup=yes, gl_cv_func_wsastartup=no)
LIBS="$gl_save_LIBS"
])
if test "$gl_cv_func_wsastartup" = "yes"; then
- AC_DEFINE([WINDOWS_SOCKETS], 1, [Define if WSAStartup is needed.])
+ AC_DEFINE([WINDOWS_SOCKETS], [1], [Define if WSAStartup is needed.])
LIBSOCKET='-lws2_32'
fi
else
dnl Unix API.
dnl Solaris has most socket functions in libsocket.
- AC_CACHE_CHECK([whether setsockopt requires -lsocket], [gl_cv_lib_socket], [
- gl_cv_lib_socket=no
- AC_TRY_LINK([extern
+ dnl Haiku has most socket functions in libnetwork.
+ dnl BeOS has most socket functions in libnet.
+ AC_CACHE_CHECK([for library containing setsockopt], [gl_cv_lib_socket], [
+ gl_cv_lib_socket=
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern
#ifdef __cplusplus
"C"
#endif
-char setsockopt();], [setsockopt();],
+char setsockopt();]], [[setsockopt();]])],
[],
[gl_save_LIBS="$LIBS"
- LIBS="$LIBS -lsocket"
- AC_TRY_LINK([extern
+ LIBS="$gl_save_LIBS -lsocket"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[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_LINK_IFELSE([AC_LANG_PROGRAM([[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_LINK_IFELSE([AC_LANG_PROGRAM([[extern
#ifdef __cplusplus
"C"
#endif
-char setsockopt();], [setsockopt();],
- [gl_cv_lib_socket=yes])
+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 $gl_cv_lib_socket = yes; then
- LIBSOCKET='-lsocket'
+ if test "$gl_cv_lib_socket" != "none needed"; then
+ LIBSOCKET="$gl_cv_lib_socket"
fi
fi
AC_SUBST([LIBSOCKET])