dnl bsd_sockets.m4--which socket libraries do we need? dnl Derrick Brashear dnl from Zephyr dnl $Id: bsd_sockets.m4,v 1.5 2005/03/05 00:36:06 dasenbro Exp $ dnl Hacked on by Rob Earhart to not just toss stuff in LIBS dnl It now puts everything required for sockets into LIB_SOCKET AC_DEFUN([CMU_SOCKETS], [ save_LIBS="$LIBS" LIB_SOCKET="" AC_CHECK_FUNC(connect, :, AC_CHECK_LIB(nsl, gethostbyname, LIB_SOCKET="-lnsl $LIB_SOCKET") AC_CHECK_LIB(socket, connect, LIB_SOCKET="-lsocket $LIB_SOCKET") ) LIBS="$LIB_SOCKET $save_LIBS" AC_CHECK_FUNC(res_search, :, AC_CHECK_LIB(resolv, res_search, LIB_SOCKET="-lresolv $LIB_SOCKET") ) LIBS="$LIB_SOCKET $save_LIBS" AC_CHECK_FUNCS(dn_expand dns_lookup) LIBS="$save_LIBS" AC_SUBST(LIB_SOCKET) ])