On Mon, Aug 13, 2012 at 1:24 AM, Hooman Fazaeli <hoomanfaza...@gmail.com> wrote: > Hi hackers > > In the process of back porting drivers to older freebsd versions, > We sometimes need to add suitable '#if __FreeBSD_version >= xxxxx ... else > ... ' > directives to the source to use an alternate function or exclude certain > statements, defines, etc. > > What is the best (quick/reliable) way to know in which __FreeBSD_version > a symbol (function, struct member, macro, ...) has been first introduced?
As far as I know it's a slightly painful look over SVN logs. First, find the SVN revision that introduced or changed the relevant symbol. Then, look at the SVN history of sys/sys/param.h for changes to __FreeBSD_version symbol. The one that's from the same or later SVN revision as the symbol change is the value you'll need. Cheers, matthew _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
