Experimental Physics and
Industrial Control System

[email protected] · Tue, 16 Nov 2010 15:35:18 -0800

On 17:52 Tue 16 Nov     , Andrew Johnson wrote:
> On Tuesday 16 November 2010 16:04:48 [email protected] wrote:
> > Ok, Andrew, I will try your solution.
> > Now assuming that I need flex... how would I do that?
> 
> You don't.

Are you saying:
(1) I don't need flex
or (2) that I should never install additional libraries in my crosstool?

My question is now just about working with crosstool chain, and not about flex in 
particular.

We agree that epics itself should be build with arm arch to build arm iocs.
So I need to have the epics arm libs on my system before compiling the iocs.
Well, for epics that's easy since we build from source and epics has only
'standard_c_lib' dependencies. Now what about non-standard libs (like flex ;), which I
could yum/apt-get. Do I need to compile them from source against the crosstool?
And what about the dependencies of the dependencies ? 

I wish you had said that 
chroot .../toolchain_dir
apt-get/yum install <my_lib> 
could do the trick...

For example, how to compile medm/edm for arm since I need the correct arch GUI libs?
Could a dynamic build save the day? Just dreaming ...

-- 
Emmanuel

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System