Date: Mon, 14 Apr 1997 13:37:14 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: avalon@coombs.anu.edu.au (Darren Reed) Cc: terry@lambert.org, hackers@freebsd.org Subject: Re: detecting kernel version at compile time Message-ID: <199704142037.NAA19277@phaeton.artisoft.com> In-Reply-To: <199704130204.TAA09799@freefall.freebsd.org> from "Darren Reed" at Apr 13, 97 11:58:00 am
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> > I do not use the __FreeBSD__ tag, personally. > > Okay, Terry, you don't use __FreeBSD__ and you don't use <osreldate.h>. > > How do you write code that compiles & runs on FreeBSD 2.1.6 -> > FreeBSD-current ? > > More importantly, how do you write kernel code for the same set of versions > without having n different source files ? By not writing code which depends on features which are different between the two releases, of course: if you limit the number of system interfaces you consume, you must, inevitably, also limit the amount of damage that a change to a single system interface is capable of causing. Regards, Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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