Date: Fri, 19 Jan 2001 07:57:35 +0100 (CET) From: Micke Josefsson <mj@isy.liu.se> To: Warner Losh <imp@harmony.village.org> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Can I do a make world only for PentiumPro? Message-ID: <XFMail.010119075735.mj@isy.liu.se> In-Reply-To: <200101190034.f0J0Yos49414@harmony.village.org>
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On 19-Jan-01 Warner Losh wrote: > In message <XFMail.010118091516.mj@isy.liu.se> Micke Josefsson writes: >: Is it possible to use my PentiumPro machine to do a 'make buildworld' for a >: target machine that only is a 486? When compiling the kernel I can select to >: omit 386/486-thingies and optimise the binaries for 686. Can I do the same >: for >: the 'world'-target? > > Yes. I do this all the time. Except I have an Pentium II 500MHz > box. I do a make buildworld there and an installworld on the 486 > box. I have to make sure that the /usr/obj and /usr/src trees are the > same between the two (mounted in the same place, same sym links, etc) > and that my /etc/make.conf is the same. Otherwise it just works. You > have to have /usr/obj writable by root, so it can't be read only :-(, > but that's about the only snag I can think of. Good! I am trying that now. > Of course I have no PPro or Pentium II specific optimizations in my > tree. They don't seem to help much anyway. Pity if the dont:( I think I read somewhere that XFree could be compiled with optimisations and that the result was some 30% snappier code. I don't remember where I read it, but can this claim have some validity? BTW, when trying to compile XFree it simply does not work, as it cannot find Imake.tmpl. There is only a makefile in /usr/X11R6/src/xc. Haven't I got all the code? Thanks for the answer. ---------------------------------- Michael Josefsson, MSEE mj@isy.liu.se This message was sent by XFMail running on FreeBSD 3.5-STABLE ---------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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