libtool: Document warning output options

By default, CATEGORY is set to "all" for all of the warning messages to
be output to standard error. CATEGORY can be set to "none" to disable
warnings.

* doc/libtool.texi: Document "W" or "--warnings=CATEGORY" option.

diff --git a/doc/libtool.texi b/doc/libtool.texi
index aabc495ab3fa5d644c607b5f6cb69b1c96abf7d4..f074c4cf5cf678b3d19143578f57149a6f5d50d1 100644 (file)
--- a/doc/libtool.texi
+++ b/doc/libtool.texi
@@ -1319,6 +1319,13 @@ can be achieved using either option @option{-v} or option
 
 @item --version
 Print libtool version information and exit.
+
+@item -W
+@itemx --warnings=@var{CATEGORY}
+Report the warnings falling in category @var{CATEGORY}. The default
+category is @command{all}. To disable warnings, use the category
+@command{none}.
+
 @end table
 
 The current @command{libtool} implementation is done with a shell script