Re: Building readline 8.2 on mingw

[Chet Ramey]

On 11/16/24 3:15 PM, Tom Tromey wrote:
> Hi.  I tried importing readline 8.2 into the gdb repository.
>
> It did not build on mingw.  The appended patch fixes all the problems.
>
> * A call to isatty is missing a close paren

Thanks, this was fixed a while back.

> * rlprivate.h declares _rl_timeout_select based on whether posixselect.h
>    was included, but this causes a build failure.  The patch changes it
>    to use the same define that other spots check.

The current devel readline does this differently, with a specific check
for mingw. The change dates from October, 2022.

> * mingw <unistd.h> does not declare alarm() by default.  You have to
>    define _POSIX and __USE_MINGW_ALARM.  TBH I am not sure if this is the
>    ideal approach.  Also I can't say whether or not the result works.

I have reports that alarm() doesn't work on mingw at all, so the curent
verison doesn't try to support timeouts on mingw.

Chet

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/

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