Re: [gentoo-dev] use.force support

[Diego 'Flameeyes' Pettenò]

On Tuesday 14 June 2005 19:46, Alec Warner wrote:
> It seems like this is an abuse of USE flags, somewhat.  I guess programs
> could have support for elibc_X or elibc_Y or userland_GNU or
> userland_DARWIN/BSD but why a USE flag for these?
Because sometimes we must disable some dependency depending on the libc or the 
userland or the kernel used.

> There isn't a use flag for kernel version, there is a
> function for that.  Why is there not a function to determine
> userland/arch/libc?
Actually there's a variable for them but as said above, variables aren't 
allowed to change the deps. And there are quite a few dependencies which are 
needed just on some systems.
Another thing is use_enable and use_with functions, takes for example kdelibs 
ebuild which has a $(use_enable kernel_Linux dnotify) as dnotify support is 
only for Linux kernels.

It's true that the forced flags shouldn't show up on emerge -pv output (at 
least for base ones, other which can be optional on some arch and forced on 
others can always show up, take for example nopie/nossp which are going to be 
forced on Gentoo/FreeBSD (I actually was working on a similar use.force file 
before so I already have this done locally).

-- 
Diego "Flameeyes" Pettenò
Gentoo Developer (Gentoo/FreeBSD, Video, Gentoo/AMD64)

http://dev.gentoo.org/~flameeyes/