doc: AC_*_TOOL does not canonicalize the prefix

* doc/autoconf.texi (Generic Programs): Do not say that the *_TOOL
macros canonicalize, they simply use the `host_alias'.

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index c7f8d2a911119bf2973ac96f16310dfc6ae50bfb..4cf0563a01fc9d025bd0f51d2f7c776d69e96627 100644 (file)
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -3950,10 +3950,9 @@ uses to produce objects, archives or executables}.
   @ovar{value-if-not-found}, @dvar{path, $PATH})
 @acindex{CHECK_TOOL}
 Like @code{AC_CHECK_PROG}, but first looks for @var{prog-to-check-for}
-with a prefix of the host type as determined by
-@code{AC_CANONICAL_HOST}, followed by a dash (@pxref{Canonicalizing}).
-For example, if the user runs @samp{configure --host=i386-gnu}, then
-this call:
+with a prefix of the host type as specified by @option{--host} , followed by a
+dash.  For example, if the user runs
+@samp{configure --build=x86_64-gnu --host=i386-gnu}, then this call:
 @example
 AC_CHECK_TOOL([RANLIB], [ranlib], [:])
 @end example