Optimize for my CPU

Optimize for my CPU

[Eric Lilja]

Hello,

when configuring Emacs ($ ./configure), what parameter should you pass to 
optimize it for a certain type of CPU?
I have a Pentium IV in my system, but Help->About Emacs lists i386 so I was 
thinking that the build I'm
running is optimized for an i386 when I want i686 optimizations.
I tried passing --cflags -march=i686 to the configure-script but it doesn't 
seem to recognise -march=i686
because the script halts.

Any ideas?

/ Eric 

Re: Optimize for my CPU

[Thien-Thi Nguyen]

"Eric Lilja" <ericlilja_remove_this@yahoo.com> writes:

> Any ideas?

try "./configure --help".  the output should mention
something about the "CFLAGS" env var, which is where
flags for the C compiler can be specified.

another idea is to check out http://www.emacswiki.org
for other build tips.

another idea is to not worry about these particular
kinds of optimizations.

thi