+if test "$x_rendezvous_on" = "osx"; then
+ AC_CHECK_HEADERS([DNSServiceDiscovery/DNSServiceDiscovery.h \
+ mach/port.h],,AC_MSG_ERROR([required C header missing!]))
+ AC_DEFINE(RENDEZVOUS, 1)
+fi
+if test "$x_rendezvous_on" = "howl"; then
+ for dir in /usr/local/include /usr/local/include/howl* \
+ /usr/include /usr/include/howl*; do
+ test -d "$dir" || continue
+ AC_MSG_CHECKING([for Howl headers in $dir])
+ if test -f "$dir/rendezvous/rendezvous.h"; then
+ if test "$dir" != "/usr/local/include" -a \
+ "$dir" != "/usr/include"; then
+ CFLAGS="$CFLAGS -I$dir"
+ CPPFLAGS="-I$dir $CPPFLAGS"
+ fi
+ AC_MSG_RESULT(yes)
+ break
+ else
+ AC_MSG_RESULT(no)
+ fi
+ done
+ AC_CHECK_HEADERS([rendezvous/rendezvous.h],, \
+ AC_MSG_ERROR([required C header missing!]))