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The option `-machdep` should be called with `-e-acsl-prepare` before the
`-then`, otherwise when `-machdep` is finally used then the project is cleared
and all previous analysis are lost.

Basile Desloges authored Mar 09, 2020 and Julien Signoles committed Mar 09, 2020

A `file` parameter is added before `line`, and the `char *` parameters
have been converted to `const char *`.

Boris Yakobowski authored Dec 04, 2017 and David Bühler committed Jan 11, 2018

- changes in libc numbers
- warning on unknown preconds are now reported at callsite