> The advice I give everyone working on a project with more than like 5
> directories:
> 
> cd /usr/pkgsrc/devel/id-utils
> make
> make install
(snip)

My favoriate is Cscope (devel/cscope).

  % cd /usr/pkgsrc/devel/cscope
  % make
  % make install
  % cd /sys
  % cscope -Rb
  % cscope

Then try to do `Find this C symbol' with `wsdisplay_accessops'. The
result looks like

  C symbol: wsdisplay_accessops
    
    File           Function                Line
  0 amidisplaycc.c <global>                181 const struct wsdisplay_accessops
                                               amidisplaycc_accessops = {
  1 vidcvideo.c    <global>                175 static const struct
                                               wsdisplay_accessops
                                               vidcvideo_accessops = {
  2 arcvideo.c     <global>                111 static struct wsdisplay_accessop
                                               arcvideo_accessops = {
  3 pfb.c          <global>                101 struct wsdisplay_accessops
                                               pfb_accessops = {
(Other results following snipped)

Regards,
Masao