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Moving toolchain to other host


Hi all.

Because I have had no end of problems getting ct-ng to build toolchains on my normally designated development host (RHEL 4.X clone), I have created a Debian 5.02 host for the sole purpose of running ct-ng. This seems to work fabulously, so far, and I've been able to generate i686 targeted and ARM targeted toolchains. Me happy.
Now, the question is, can I move those toolchains over to my RHEL 4.X &/or RHEL 5.X host(s), in order to compile code to run on embedded targets? The Redhat boxes are presently running kernels version 2.6.9 & version 2.68.18. If I build against those kernel versions when I build the toolchain, does that buy me anything? What IS the upshot of changing kernel versions when building the toolchains? Can I/should I build a specific version of the C Library with the toolchains?
Now that I'm thinking about, I guess I would give myself the best chance by using versions of all compilers, libraries and kernels that match the versions on the RHEL sort-of target. I suppose that in some sense, I am making a Canadian cross, bu hoping to cheat and just copy the toolchains without targeting them to a different host type. Are there general rules about what object code is runnable on other OS versions?


--- rod.



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