Need to recompile kernel when changing USE flags? [SOLVED]

Maheriano · Last edited by Maheriano on Sat Nov 12, 2005 6:01 pm; edited 1 time in total

_________________
Current project - carputer running.........Gentoo?

gentoo_dude · Posted: Sat Nov 12, 2005 3:35 am Post subject:

allucid · Veteran Joined: 02 Nov 2002 Posts: 1314 Location: atlanta

no. your kernel has nothing to do with use flags. you can recompile all programs that take advantage of your useflag changes with 'emerge --newuse world' but that is optional. you can also use that flag for a specific program e.g. 'emerge --newuse mozilla-firefox'.

Maheriano · Posted: Sat Nov 12, 2005 3:37 am Post subject:

What about when I change the CFLAGS?
_________________
Current project - carputer running.........Gentoo?

Kurt Steiner · Posted: Sat Nov 12, 2005 11:25 am Post subject:

NeddySeagoon · Posted: Sat Nov 12, 2005 11:32 am Post subject:

Maheriano,

Your CFLAGS are noy used by the kernel build, so No.
It sets its own CFLAGS
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

Naib · Posted: Sat Nov 12, 2005 12:33 pm Post subject:

Well there is only one time I can think of when changing USE flags results in a recompiling of the kernel

its not just a re-complining of the kernel but reconfigure then recompile.

IF you enable a USE flag that pulls in another piece of software that need to be build against your current kernel, IF the emerge process (well the make process) determines that you are missing a kernel configuration option it will terminate an instruct you to enable it.
_________________
#define HelloWorld int
#define Int main()
#define Return printf
#define Print return
#include <stdio>
HelloWorld Int {
Return("Hello, world!\n");
Print 0;

Maheriano · Posted: Sat Nov 12, 2005 5:50 pm Post subject:

NeddySeagoon · Posted: Sat Nov 12, 2005 5:57 pm Post subject:

Maheriano,

It says to rebuild everything if you change your CFLAGS. Thats a bit extreme.
As you update, packages will be made with the new CFLAGS
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

Maheriano · Posted: Sat Nov 12, 2005 6:00 pm Post subject:

pjp · Administrator Joined: 16 Apr 2002 Posts: 20593

Moved from Other Things Gentoo
_________________
Quis separabit? Quo animo?