commit 668b32b76c29d2186958eefab81b0dac9258f836
from: rsc <devnull@localhost>
date: Tue Jan 18 18:14:14 2005 UTC

explain nptl stuff

commit - 9a4f7bced2db86a1f8031ecb639018470df9c8d0
commit + 668b32b76c29d2186958eefab81b0dac9258f836
blob - cc193eeb5e883c4579939544badbf62df27203e8
blob + 04c491a8be3b83a832af32ef4875e26159b6bcee
--- src/libthread/README.Linux
+++ src/libthread/README.Linux
@@ -34,4 +34,7 @@ TLS (2.6+) you will be using TLS.
 
 Apparently Gentoo and maybe other distributions do not follow this rule.
 They use non-TLS libraries even on kernels that can support TLS.
+To accomodate them, you can add a line SYSVERSION=2.4 to $PLAN9/config
+to force the build to think you are running an old kernel.
+The INSTALL script sets up this file automatically on Linux systems.