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-rw-r--r--man/man1/install.15
1 files changed, 5 insertions, 0 deletions
diff --git a/man/man1/install.1 b/man/man1/install.1
index 816988e0..e070ffba 100644
--- a/man/man1/install.1
+++ b/man/man1/install.1
@@ -36,6 +36,11 @@ builds an HTML version of the manual and installs it in
.PP
.I INSTALL
can safely be repeated to rebuild the system from scratch.
+.PP
+The system uses different threading implementations on Linux 2.6 and
+later kernels than on 2.4 and earlier;
+and on FreeBSD 5 and later kernels than on FreeBSD 4 and earlier.
+Running binaries from one class on another may not work.
.SH FILES
.TP
.B \*9/lib/moveplan9.files