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

[Heiko Z. <he...@zu...>]

Bruce Smith wrote:
>>>>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.

same here

>>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.

Let's hope somebody on this list has the answer to this.

cya
   Heiko