[poky] Using non-distro gcc

[Chin Huat Ang]

My Centos 5.6's gcc is a bit outdated and I'm seeing compiler bugs when compiling elfutils-native. As such I've rolled my own gcc 4.5.3 with MPC/MPFR/GMP all installed to /opt, my intention is to make the new toolchain self-contained and reusable on other machines/distros.

The problem is that, in order to use this gcc I will need to set LD_LIBRARY_PATH so that it can picks up MPC/MPFR/GMP from /opt.

Poky seems to always build with pristine environment (i.e. no LD_LIBRARY_PATH), so my new toolchain is unusable. This problem will not happen on distro gcc as MPC et al are always installed in /usr/lib.

Is there a way to tell Poky to set LD_LIBRARY_PATH whenever it uses the non-distro toolchain? Or is it the right thing to do at all?

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