1AC_DEFUN([ACX_LIBWRAP], [ 2LIBWRAP_LIBS= 3saved_LIBS="$LIBS" 4LIBS="$LIBS -lwrap" 5AC_MSG_CHECKING([for tcpwrap library and headers]) 6AC_LINK_IFELSE( 7[AC_LANG_PROGRAM( 8[#include <tcpd.h> 9#include <syslog.h> 10int allow_severity = LOG_INFO; 11int deny_severity = LOG_WARNING;], 12[struct request_info *req; 13return hosts_access (req);])], 14[AC_DEFINE(HAVE_LIBWRAP, [], [Have tcpwrap?]) 15LIBWRAP_LIBS="-lwrap" 16AC_MSG_RESULT(yes)], 17[AC_MSG_RESULT(no)]) 18LIBS="$saved_LIBS" 19]) 20