[PATCH] Easy process shared semaphores

We really need a pshared semaphore, but those aren't always available.
Just implement a cruddy local semaphore type, fio only really needs
to signal start/stop conditions.
diff --git a/README b/README
index d27ee87..3240b65 100644
--- a/README
+++ b/README
@@ -25,6 +25,17 @@
 http://linux01.gwdg.de/~pbleser/rpm-navigation.php?cat=System/fio
 
 
+Building
+--------
+
+Just type 'make' and 'make install'. If on FreeBSD, for now you have to
+specify the FreeBSD Makefile with -f, eg:
+
+$ make -f Makefile.Freebsd && make -f Makefile.FreeBSD install
+
+This might change in the future if I opt for an autoconf type setup.
+
+
 Options
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