Same rationale as for module 'servent': Useful outside of getaddrinfo.
2008-11-15 Bruno Haible <[EMAIL PROTECTED]> New module 'hostent'. * modules/hostent: New file. * m4/hostent.m4: New file, based on code in m4/getaddrinfo.m4. =============================== modules/hostent ========================== Description: Library containing gethostent(), sethostent(), endhostent(), gethostbyname(), gethostbyaddr(). Files: m4/hostent.m4 Depends-on: sys_socket configure.ac: gl_HOSTENT Makefile.am: Include: <netdb.h> Link: $(HOSTENT_LIB) License: LGPLv2+ Maintainer: Bruno Haible, Simon Josefsson ================================ m4/hostent.m4 =========================== # hostent.m4 serial 1 dnl Copyright (C) 2008 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_HOSTENT], [ dnl Where are gethostent(), sethostent(), endhostent(), gethostbyname(), dnl gethostbyaddr() defined? dnl - On Solaris, they are in libnsl. Ignore libxnet. dnl - On Haiku, they are in libnetwork. dnl - On BeOS, they are in libnet. dnl - On native Windows, they are in ws2_32.dll. dnl - Otherwise they are in libc. AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H HOSTENT_LIB= gl_saved_libs="$LIBS" AC_SEARCH_LIBS([gethostbyname], [nsl network net], [if test "$ac_cv_search_gethostbyname" != "none required"; then SERVENT_LIB="$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_TRY_LINK([ #ifdef HAVE_WINSOCK2_H #include <winsock2.h> #endif #include <stddef.h> ], [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]) ])