1# hostent.m4 serial 2 2dnl Copyright (C) 2008, 2010-2014 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7AC_DEFUN([gl_HOSTENT], 8[ 9 dnl Where are gethostent(), sethostent(), endhostent(), gethostbyname(), 10 dnl gethostbyaddr() defined? 11 dnl - On Solaris, they are in libnsl. Ignore libxnet. 12 dnl - On Haiku, they are in libnetwork. 13 dnl - On BeOS, they are in libnet. 14 dnl - On native Windows, they are in ws2_32.dll. 15 dnl - Otherwise they are in libc. 16 AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H 17 HOSTENT_LIB= 18 gl_saved_libs="$LIBS" 19 AC_SEARCH_LIBS([gethostbyname], [nsl network net], 20 [if test "$ac_cv_search_gethostbyname" != "none required"; then 21 HOSTENT_LIB="$ac_cv_search_gethostbyname" 22 fi]) 23 LIBS="$gl_saved_libs" 24 if test -z "$HOSTENT_LIB"; then 25 AC_CHECK_FUNCS([gethostbyname], , [ 26 AC_CACHE_CHECK([for gethostbyname in winsock2.h and -lws2_32], 27 [gl_cv_w32_gethostbyname], 28 [gl_cv_w32_gethostbyname=no 29 gl_save_LIBS="$LIBS" 30 LIBS="$LIBS -lws2_32" 31 AC_LINK_IFELSE( 32 [AC_LANG_PROGRAM( 33 [[ 34#ifdef HAVE_WINSOCK2_H 35#include <winsock2.h> 36#endif 37#include <stddef.h> 38 ]], 39 [[gethostbyname(NULL);]])], 40 [gl_cv_w32_gethostbyname=yes]) 41 LIBS="$gl_save_LIBS" 42 ]) 43 if test "$gl_cv_w32_gethostbyname" = "yes"; then 44 HOSTENT_LIB="-lws2_32" 45 fi 46 ]) 47 fi 48 AC_SUBST([HOSTENT_LIB]) 49]) 50