Cannot override arm_fpu config

[kapouer]

Hi,
When building nodejs for debian armel, one must set arm_fpu to "vfp".
Alas, -Darm_fpu=fvp is overriden by https://github.com/nodejs/node/blob/master/configure#L613.
Is it possible to check if arm_fpu is set in configure before setting it ?

[kapouer]

Forgot basic information like nodejs version 4.0.0

[bnoordhuis]

It would need a new configure flag but that's pretty straightforward, you can use the logic for --with-mips-fpu-mode as a template.

[kapouer]

Here's what i meant, but i'm not sure it works.

[bnoordhuis]

I don't think that works, assuming -Darm_fpu=fvp is what needs to be passed to gyp. The configure script runs before gyp's configure step; no variables have been set at that point yet.

[kapouer]

Oh, got it.

[kapouer]

This is better, i'll test it a little and submit a PR !