[Bug libc/24092] on seeds 0 and 1, srandom() initializes the random number generator in the same way

["yann at droneaud dot fr" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=24092

Yann Droneaud <yann at droneaud dot fr> changed:

           What    |Removed                     |Added
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                 CC|                            |yann at droneaud dot fr

--- Comment #16 from Yann Droneaud <yann at droneaud dot fr> ---
It's possible some existing programs rely on srandom(0) being the same as
srandom(1): such programs would expect random() outputs to be the one reporter
is getting.

So modifying the random() behavior for srandom(0) could break existing
programs.

Other libraries/environment made such changes and were required to provide
backward compatibility:

Glib: G_RANDOM_VERSION=1
https://developer.gnome.org/glib/stable/glib-running.html
Python: PYTHONHASHSEED=0 or random.seed(,version=1) 
https://docs.python.org/2.7/library/random.html#random.seed
https://docs.python.org/3.7/library/random.html#random.seed
https://docs.python.org/2.7/using/cmdline.html#envvar-PYTHONHASHSEED
https://docs.python.org/3.7/using/cmdline.html#envvar-PYTHONHASHSEED

Sad.

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