+YAZ_INIT(threads,2.0.29)
+if test -z "$YAZLIB"; then
+ AC_MSG_ERROR([YAZ development libraries missing])
+fi
+YAZ_DOC
+AC_CHECK_HEADERS(unistd.h sys/stat.h sys/time.h sys/types.h)
+
+AC_ARG_ENABLE(zoom,[ --disable-zoom disable ZOOM (for old C++ compilers)],[enable_zoom=$enableval],[enable_zoom=yes])
+AM_CONDITIONAL(ZOOM, test $enable_zoom = "yes")