# hostent.m4 serial 3 dnl Copyright (C) 2008, 2010-2019 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_HOSTENT], [ dnl Where are gethostent(), sethostent(), endhostent(), gethostbyname(), dnl gethostbyaddr() defined? dnl - On Solaris < 11.4, they are in libnsl. 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 HOSTENT_LIB= gl_saved_libs="$LIBS" AC_SEARCH_LIBS([gethostbyname], [nsl network net], [if test "$ac_cv_search_gethostbyname" != "none required"; then HOSTENT_LIB="$ac_cv_search_gethostbyname" fi]) LIBS="$gl_saved_libs" if test -z "$HOSTENT_LIB"; then AC_CHECK_FUNCS([gethostbyname], , [ AC_CACHE_CHECK([for gethostbyname in winsock2.h and -lws2_32], [gl_cv_w32_gethostbyname], [gl_cv_w32_gethostbyname=no gl_save_LIBS="$LIBS" LIBS="$LIBS -lws2_32" AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[ #ifdef HAVE_WINSOCK2_H #include #endif #include ]], [[gethostbyname(NULL);]])], [gl_cv_w32_gethostbyname=yes]) LIBS="$gl_save_LIBS" ]) if test "$gl_cv_w32_gethostbyname" = "yes"; then HOSTENT_LIB="-lws2_32" fi ]) fi AC_SUBST([HOSTENT_LIB]) ])