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@@ -273,6 +273,16 @@ Some of the available `configure` options are:
* `--with-ssl=PATH` - Specify location of OpenSSL include and lib
* `--{with,without}-ssl` - OpenSSL (without implies that the `crypto`,
`ssh`, and `ssl` won't be built)
+* `--enable-ethread-pre-pentium4-compatibility` - Enable compatibility with
+ x86 processors before pentium 4 (back to 486) in the ethread library. If
+ not passed the ethread library (part of the runtime system) will use
+ instructions that first appeared on the pentium 4 processor when building
+ for x86.
+* `--with-libatomic_ops=PATH` - Use the `libatomic_ops` library for atomic
+ memory accesses. If `configure` should inform you about no native atomic
+ implementation available, you typically want to try using the
+ `libatomic_ops` library. It can be downloaded from
+ <http://www.hpl.hp.com/research/linux/atomic_ops/>.
If you or your system has special requirements please read the `Makefile` for
additional configuration information.