It would be nice (I agree with you) if by the time they reach 1.0 or whenever the program has enough data collected to really help, if it could generate safe/optimized settings like below, and then in parens provide say an additional set of more "Experimental" options as you mentioned Tom.

Best,
-Riyad

Thomas T. Veldhouse wrote:
Well, that program looks rather dull ... arch and -O3 pipe ... big deal :)
What about C++ optimizations such as -fmemoize-lookups and -fsave-memoized
???

Tom Veldhouse

----- Original Message ----- From: "Riyad Kalla" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, August 05, 2003 7:04 PM
Subject: Re: [gentoo-user] 1.4_final CFLAGS Generation?




They might be referring to the genflags package, it comes with strangely
names info2flags, info2host and host2flags. It parses your machine
information and spits back safe/fast flags for you. Kind of a middle
ground. Not freakishly optimized, but also not going to cause you to
segfault at strange times.

An example from a run-of-the-mill P4 Dell machine:
<hostname> root # info2host
MAINARCH="x86"
SUBARCH="pentium4"

<hostname> root # info2flags
CHOST="i686-unknown-gnu-linux"
CFLAGS="-march=pentium4 -O3 -pipe"
CXXFLAGS="-march=pentium4 -O3 -pipe"


An example from a dual P4 XEON server (Dell again): <hostname> root # info2host MAINARCH="x86" SUBARCH="xeon"

<hostname> root # info2flags
CHOST="i686-unknown-gnu-linux"
CFLAGS="-march=pentium4 -O3 -pipe"
CXXFLAGS="-march=pentium4 -O3 -pipe"

Best,
-Riyad

Luke Macken wrote:


I'm bootstrapping 1.4 as we speak, and I didn't see any signs of "CFLAG

generation".


luke


On Tue, Aug 05, 2003 at 05:35:13PM -0400, Nathaniel McCallum wrote:




I'm just wondering.  This is the announcement from www.gentoo.org: "1.4
includes automated kernel  builds, CFLAGS generation, the Gentoo

Reference


Platform, and support for netless installation."

Where/how is/do you do the CFLAGS generation!?

Nathaniel


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