elm 2.5.3 and glibc 2.1.93

[Ulrich Drepper]

"H . J . Lu" <hjl@lucon.org> writes:

> >From here, I conclude "The glibc functions do not change `errno' when
> they succeed." By not saving/restoring errno, we have changed
> documented glibc behavior. We should be consistent on it.

I've not written this and it is a stupid assumption.  errno must be
changeable.  Everything depending on errno not being changed is
broken.  There are exceptions: strtol() etc.  But nothing else.  The
reason is simply that the user must not make any assuptions about the
implementation.

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