Update README

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>

diff --git a/README b/README
index 71eec3530465ebe2093093dce57b4871b0facd66..d454757fceffa30e7622d64dfee07290537bb0ee 100644 (file)
--- a/README
+++ b/README
@@ -15,6 +15,15 @@ BUILDING
                Forcing 64-bit build:
                * CFLAGS=-m64 ./configure
 
+ARCHITECTURES SUPPORTED
+-----------------------
+
+Currently, x86 (only Pentium and +), x86 64, PowerPC 32/64 and S390 are
+supported. The current use of sys_futex() makes it Linux-dependent, although
+this portability limitation might go away in a near future by using the pthread
+cond vars. Also, the restriction against i386 and i486 might go away if we
+integrate some of glibc runtime CPU-detection tests.
+
 QUICK START GUIDE
 -----------------