Re: [Devil-linux-develop] Suggestion for better compiling.

[Bruce S. <bw...@ar...>]

> >> Take a look at scripts/prepare and search for "uname" ( without the
> >quotes
> >> *lol*).  The complete DL System is build for the specific CPU.
> >
> >Are you sure it's working?  I was watching openssl & glibc both compile
> >on my screen, and I never say anything that looked like:  -march i686
> >or any gcc parameter containing "686" (except for the kernel).
> 
> Hmmm.....checking...checking.....checking....executing: ./scripts/build.sh
> build opt=openssh
> Ok, the host-type and build-system-type in the configure part is correct,
> but I don't see any -march=686 either.
> Question: doesn't gcc use the architecture it was compiled for, when you
> don't specify anything?

I don't know.  I'm far from being a gcc expert.

> I'm getting a bit confused now....

Welcome to the club!  :-)

I've been reading the gcc man page, looking at gcc.gnu.org docs, and
searching the newsgroups.

The most useful thing I found so far is "gcc -v" tells what "spec" file
it uses for default options.  I looked at that file, but all the fancy
substitution stuff is over my head.

It may be using i686 optimization (in my case), but I don't know how to
confirm or deny it.

 - BS