Re: Support for multiple, concurrent version of tools

["Yann E. MORIN" <yann dot morin dot 1998 at anciens dot enib dot fr>]

Hello Diwaker!
Hello All!

On Wednesday 19 August 2009 19:56:25 Diwaker Gupta wrote:
> I'm using crosstool-ng 1.4.2. In the toolchain I'm trying to build, I'd like to 
> be able to have multiple versions of tools (eg, different gcc versions) at the 
> same time. Is this possible using crosstool-ng? I searched the archives, but 
> haven't seen this answered yet.

This is not currently possible: if you were to install another toolchain
on top of an existing one for the same tuple, then you would end up
overwriting:
 - the tools: gcc, gdb, ar, as... and their runtime libraries in libexec/
 - the sysroot/ directory
 - many other things, I guess...

Definitely, this is not a good idea. So far...

We could maybe devise a plan to make it possible, but so far I haven't
got the smallest idea on how to do this. At least, append the version
number to each tool, have the sysroot a kind of hash of the version
combinations. But that's probably not enough. If you can come up with
a patch, I'd be glad to review it. ;-)

Regards,
Yann E. MORIN.

PS. I'm off to a one-week holiday (that I've been waiting for for the
past year), with scarse internet access, and no machine to work on.
I'm packing right now, and won't be reachable before I return, that is
20090828, which happens to be my girlfriend's birthday, so I won't be
really reachable before the 20090830... Party time, now! :-)
YEM.

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