cvs commit: src/sys/dev/led led.h

[Colin Percival]

At 19:15 11/05/2004, David O'Brien wrote:
>On Tue, May 11, 2004 at 10:02:59AM -0700, Nate Lawson wrote:
>> Do we even want __FBSDID in .h files?  It doesn't seem to make sense since
>> it's not a compilation unit (i.e. no linkage).
>
>It actually does make sense, as a header's contents does wind up in a .o
>eventually :-)  And header contents can be the cause of problems as much
>as a .c file.  There is no problem having multiple __FBSDID in either
>a.out or ELF objects.

However, there are problems with having a header file's __FBSDID tags end
up in a several binaries.  Quite apart from the resulting bloat, most changes
to header files don't actually result in many binaries being modified;
including compilable $Id$ tags in the headers would result in lots of
spurious binary changes.  This would make me (and anyone who uses FreeBSD
Update) very unhappy.

Colin Percival