Update TODO file (regarding Debian/alpha bug)

diff --git a/TODO b/TODO
index 49382ff..765374d 100644 (file)
--- a/TODO
+++ b/TODO
@@ -5,8 +5,12 @@ Add C++0x ATM (atomic memory operations) layer.
 
 == FIXME tasks ==
 
-Debian/powerpc and Debian/alpha (gcc 4.6.3-7):
+Debian/powerpc (gcc 4.6.3-7):
 test_stack failed (Debian Bug #680100).
 
+Debian/alpha (gcc 4.6.3-7):
+test_stack failed (Debian Bug #680100) caused by a compiler bug while
+handling __builtin_expect in atomic_ops_stack.c.
+
 Debian/m68k (Linux 3.2.0-2-atari):
 test_stack failed (Bus error), regression (Debian Bug #680066).