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46 lines
1.5 KiB
Plaintext
46 lines
1.5 KiB
Plaintext
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# hostent.m4 serial 1
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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_HOSTENT],
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[
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dnl Where are gethostent(), sethostent(), endhostent(), gethostbyname(),
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dnl gethostbyaddr() defined?
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dnl - On Solaris, they are in libnsl. Ignore libxnet.
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dnl - On Haiku, they are in libnetwork.
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dnl - On BeOS, they are in libnet.
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dnl - On native Windows, they are in ws2_32.dll.
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dnl - Otherwise they are in libc.
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AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
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HOSTENT_LIB=
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gl_saved_libs="$LIBS"
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AC_SEARCH_LIBS([gethostbyname], [nsl network net],
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[if test "$ac_cv_search_gethostbyname" != "none required"; then
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HOSTENT_LIB="$ac_cv_search_gethostbyname"
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fi])
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LIBS="$gl_saved_libs"
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if test -z "$HOSTENT_LIB"; then
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AC_CHECK_FUNCS([gethostbyname], , [
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AC_CACHE_CHECK([for gethostbyname in winsock2.h and -lws2_32],
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[gl_cv_w32_gethostbyname],
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[gl_cv_w32_gethostbyname=no
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gl_save_LIBS="$LIBS"
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LIBS="$LIBS -lws2_32"
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AC_TRY_LINK([
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#ifdef HAVE_WINSOCK2_H
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#include <winsock2.h>
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#endif
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#include <stddef.h>
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], [gethostbyname(NULL);], [gl_cv_w32_gethostbyname=yes])
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LIBS="$gl_save_LIBS"
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])
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if test "$gl_cv_w32_gethostbyname" = "yes"; then
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HOSTENT_LIB="-lws2_32"
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fi
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])
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fi
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AC_SUBST([HOSTENT_LIB])
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])
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