X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=hints%2FREADME.hints;h=f55ded9800520cb26a646e57cb142fbc2f4675a3;hb=4d23630ad8348f06e271f4988fef830ffa70c415;hp=9b49a398bcc6e41bf22491dafa050b1b5e75a70a;hpb=c5884c5a7813ec61938e7953d7c507670145b965;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/hints/README.hints b/hints/README.hints
index 9b49a39..f55ded9 100644
--- a/hints/README.hints
+++ b/hints/README.hints
@@ -303,6 +303,13 @@ variable in question is defined; however, this may change, so the scheme in
 hints/solaris_2.sh of checking to see if uselongdouble is defined is a good
 idea.
 
+=item Call status
+
+Call-backs are only called always, even if the value for the call-back is
+uset: UU/usethreads.cbu is called when Configure is about to deal with
+threads. All created call-backs from hints should thus check the status
+of the variable, and act upon it.
+
 =item Future status
 
 I hope this "call-back" scheme is simple enough to use but powerful