Re: Using 'libfaketime' for reproducible builds

[David Kastrup]

Werner LEMBERG <wl@gnu.org> writes:

> Before investing more time into it I wonder whether the use of
> 'libfaketime' would be a valid solution for creating reproducible
> builds.  According to 'pkgs.org' it is available for most GNU/Linux
> distributions; it is also part of both MacPorts and Homebrew.
>
>   https://github.com/wolfcw/libfaketime
>
> The idea is to do the following:
>
>   export LD_PRELOAD=/usr/local/lib/libfaketime.so.1
>   export FAKETIME="2020-12-24 00:00:00"
>
>   make all
>   make doc
>
> This freezes the current time at a given value.

Isn't that a problem for the operation of Make itself since it relies on
file modification dates?

-- 
David Kastrup