[Chicken-hackers] [PATCH][5] Move C_path_to_executable into runtime and add executable-pathname procedure

[Evan Hanson]

Hi all,

Here is an implementation of #971. It adds an `executable-pathname`
procedure to the library unit and cleans up some error handling in the
code from C_path_to_executable (now moved into a new function; see the
commit message for details).

I've tested this on Linux, OpenBSD, MinGW/MSYS and Cygwin; I'd
appreciate it if someone could give this a go on at least Mac OS X and
Haiku.

  https://bugs.call-cc.org/ticket/971

Let me know if I've missed anything. Cheers,

Evan

0001-Move-C_path_to_executable-into-runtime-and-add-execu.patch
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