[rb-general] [PATCH] gcc: read -fdebug-prefix-map OLD from environment (improved reproducibility)

Bernd Schmidt bschmidt at redhat.com
Fri Dec 11 18:03:28 CET 2015

On 12/11/2015 05:49 PM, Daniel Kahn Gillmor wrote:
> I've re-rolled the patch (attached below, here) to use the ENV: prefix
> instead of the $.

It might be irrelevant at this point, but the "ENV:" prefix is used in 
AmigaOS and could be part of a filename.

> +  if (0 == strncmp(ENV_PREFIX, arg, ENV_PREFIX_OFFSET))
> +    {
> +      env = xstrndup (arg+ENV_PREFIX_OFFSET, p - (arg+ENV_PREFIX_OFFSET));

Spaces before ( and around operators like +. Please review our coding 
guidelines and have a look at the surrounding code.

Wouldn't it be simpler just to special-case -fdebug-prefix-map in 
gen_producer_string? The environment variable thing strikes me as 


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