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guile/m4/servent.m4
Ludovic Courtès 49114fd43d Update Gnulib; add new modules.
This updates Gnulib to v0.0-4889-ge375fe3.

* m4/gnulib-cache.m4: Add `accept', `bind', `close', `connect',
  `getpeername', `getsockname', `getsockopt', `listen', `malloc',
  `malloca', `recv', `recvfrom', `send', `sendto', `setsockopt',
  `shutdown', `socket', and `sockets', requested by
  Jan Nieuwenhuizen <janneke-list@xs4all.nl> for cross-MinGW32 builds.
  Add `trunc', requested by Mark H Weaver <mhw@netris.org>.
2011-02-14 11:36:25 +01:00

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# servent.m4 serial 2
dnl Copyright (C) 2008, 2010-2011 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_SERVENT],
[
dnl Where are getservent(), setservent(), endservent(), getservbyname(),
dnl getservbyport() defined?
dnl Where are getprotoent(), setprotoent(), endprotoent(), getprotobyname(),
dnl getprotobynumber() defined?
dnl - On Solaris, they are in libsocket. Ignore libxnet.
dnl - On Haiku, they are in libnetwork.
dnl - On BeOS, they are in libnet.
dnl - On native Windows, they are in ws2_32.dll.
dnl - Otherwise they are in libc.
AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
SERVENT_LIB=
gl_saved_libs="$LIBS"
AC_SEARCH_LIBS([getservbyname], [socket network net],
[if test "$ac_cv_search_getservbyname" != "none required"; then
SERVENT_LIB="$ac_cv_search_getservbyname"
fi])
LIBS="$gl_saved_libs"
if test -z "$SERVENT_LIB"; then
AC_CHECK_FUNCS([getservbyname], , [
AC_CACHE_CHECK([for getservbyname in winsock2.h and -lws2_32],
[gl_cv_w32_getservbyname],
[gl_cv_w32_getservbyname=no
gl_save_LIBS="$LIBS"
LIBS="$LIBS -lws2_32"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[
#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#include <stddef.h>
]],
[[getservbyname(NULL,NULL);]])],
[gl_cv_w32_getservbyname=yes])
LIBS="$gl_save_LIBS"
])
if test "$gl_cv_w32_getservbyname" = "yes"; then
SERVENT_LIB="-lws2_32"
fi
])
fi
AC_SUBST([SERVENT_LIB])
])