gcc 4.1.1 and gcc-config [solved]

cac · Last edited by cac on Tue Apr 24, 2007 5:21 pm; edited 1 time in total

I have gcc 4.1.1 emerged, but I am having some issues with selecting it using gcc-config. It seems that it will set 4.1.1 as a cross-compiler and not as my main compiler:

gust4voz · Posted: Tue Apr 24, 2007 3:17 pm Post subject:

You're only switch the kernel compiler (kgcc64).
At this point gcc4 is only unleashed for kernels on any profile (kgcc64-4.1.1), but plain userland gcc4 will be available once 2007.0 is released and only for 2007.0 profiles since it requires user intervention to upgrade (you can't just switch compiler and expect things compiled with gcc3/4 to be mixed up and work).
Basically you'll need to follow the gcc upgrade guide once everything is released to do so.
_________________
Gustavo Zacarias
Gentoo/SPARC monkey

cac · Posted: Tue Apr 24, 2007 5:20 pm Post subject:

My apologizes. I'm definitely familiar with the upgrade docs, and in fact was following them when I made my first post. I mistook seeing kgcc-4.1.1 fly by during my last emerge world for regular gcc. I am a little ignorant regarding the differences but I'm guessing the kernel compiler (kgcc) gets you a 64bit kernel but the regular gcc gets you 32bit userland, and hence the need for a separate complier versus using the same gcc version. And this would be why 4.1.1 shows up as a cross-compiler in gcc-config? My first error was not double checking what was exactly merged. Then my confusion was further fueled by gcc-config -l.

Now that I'm a little bit more familiar withe kgcc vs gcc I think the upgrade docs need to have some wording to clarify the difference. There wasn't anything in there to verify you really have both pieces and it isn't clear from gcc-config. Right now I the kgcc-4.1.1 but don't have gcc-4.1.1 so I shouldn't switch yet.

Thanks for the help,
-Chris

gust4voz · Posted: Tue Apr 24, 2007 7:09 pm Post subject:

Feel free to send the docs team a patch with it.
But anyway there's no special upgrade instructions for kgcc64 since it just builds kernels and it doesn't matter which gcc built the userland, they can be mixed together just fine.
Other than kgcc64-4.1.1 being the "supported" kernel compiler there's no reason for kgcc64-3.4.6 to have any issues building them other than usually generating slightly larger kernels.
_________________
Gustavo Zacarias
Gentoo/SPARC monkey