what exactly is a "patch," anyway?

Dan Kegel dank@kegel.com
Mon Sep 12 00:20:00 GMT 2005


Michael N. Moran wrote:
> Dan Kegel wrote:
> 
>> Robert P. J. Day wrote:
>>
>>>   however, in looking at those arch-dependent makefiles, it wasn't
>>> clear to me that setting the compile options was an actual error.  i
>>> had assumed that, since the kernel programmers put that in, it was
>>> there for a purpose, so it wasn't really a bug.
>>
>>
>> I only want to fix it if it's a bug.
> 
> Its only a bug for the latest versions of GCC.

Can you give me a one-line example of the problem
compiling a "hello, world" program?

> Now, how can we determine the GCC version in
> the "arch/{arm,sh}/Makefile" to make the kernel
> happy for all versions of GCC. Suggestions?

I can suggest more once I see what options you're talking about...

> My guess is that we're suffering because "normal" (sane)
> kernel builders haven't tried the bleeding edge GCC ;-)

They do, but maybe not on all processors.
- Dan


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