Hi, 
You can use ctags along with find , in the form of
find  dirname -name "*.[ch]" | xargs ctags     
for example, to generate  the tags for all the source files within
directory "dirname". To obtain a ctags with -R functionality, you can
install exctags from pkgsrc/devel/exctags.
Another good tool for browsing code ( but limited to C is cscope)
pkgsrc/devel/cscope .
Regards,
Kailash 

On Tue, 3 Aug 2004 22:40:12 -0300, Chris Scott <ccscott@gmail.com> wrote:
> How can I get ctags to recursively search a directory to make its tag
> file? The -R flag that is mentioned in the Vim documents doesn't seem
> to be supported.
> 
> --
> 
> Chris
>