libtool.texi: Update tagging documentation

* doc/libtool.texi: Failure to infer a tag results in a fatal error,
  not in defaulting to tag CC.

diff --git a/doc/libtool.texi b/doc/libtool.texi
index 6db39346aa65e3eeca9e4faa5abd851676e7b3d6..ce0212ed784c05041da3bbd401f05a599e207edb 100644 (file)
--- a/doc/libtool.texi
+++ b/doc/libtool.texi
@@ -3009,7 +3009,7 @@ correspondence between language names and tags names.
 
 @command{libtool} tries to automatically infer what tag to use from
 the compiler command being used to compile or link.  If it can't infer
-a tag, then it defaults to the configuration for the @code{C} language.
+a tag, then it exits immediately with a fatal error.
 
 The tag can also be specified using @command{libtool}'s
 @option{--tag=@var{tag}} option (@pxref{Invoking libtool}).  It is a good