[gentoo-embedded] multiple projects, one toolchain, on same host

[Jason]

If I have two projects which use the same toolchain, is it sufficient to
do the following?

crossdev --target armeb-softfloat-linux-gnu
SYSROOT=/usr/armeb-softfloat-linux-gnu

Set up SYSROOT with make.globals, and so on

mkdir /usr/armeb-softfloat-linux-gnu-nslu2
cp -ax /usr/armeb-softfloat-linux-gnu/* \
	/usr/armeb-softfloat-linux-gnu-nslu2/

Then repeat for the second armeb project.

Working on nslu2 would set SYSROOT and TGTROOT appropriately (for me, I
have a .screenrc that sets up this build environment).

This way I could simply use two different .screenrc's for two different
projects.  The way I see it, this would allow me to tailor USE flags,
package.keywords, etc per project as opposed to per toolchain.  Are
there any pitfalls I'm missing with this approach?

thx,

Jason.


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