install.texi: Remove reference to removed 'pthreads' thread option.

	* doc/install.texi: Remove reference to removed 'pthreads' thread
	option.

From-SVN: r72253

gcc/ChangeLog

+2003-10-08  Nathanael Nerode  <neroden@gcc.gnu.org>
+
+	* doc/install.texi: Remove reference to removed 'pthreads' thread
+	option.
+
 2003-10-08  Aldy Hernandez  <aldyh@redhat.com>
 
 	* config/rs6000/rs6000.md ("abssi2_isel"): Add early clobber to

gcc/doc/install.texi

@@ -890,10 +890,6 @@ missing and thus this setting will cause a known bootstrap failure.)
 This is an alias for @samp{single}.
 @item posix
 Generic POSIX thread support.
-@item pthreads
-Same as @samp{posix} on arm*-*-linux*, *-*-chorusos* and *-*-freebsd*
-only.  A future release of gcc might remove this alias or extend it
-to all platforms.
 @item rtems
 RTEMS thread support.
 @item single