Re: [PATCH] Check .exe as well when a target does not exist on OS/2

[Eli Zaretskii]

> From: KO Myung-Hun <komh78@gmail.com>
> Date: Fri, 13 Jan 2023 22:27:43 +0900
> 
> For example,
> 
> foo: foo.c
>     gcc $@ $<
> 
> This pattern is usually used on UNIX. However, on OS/2, gcc creates
> foo.exe not foo when an extension is not present, and Make check foo
> only. Therefore Make tries to build foo whenever called.

Please describe the use case in detail.  This situation exists on
other platforms, not just of OS/2, and we don't do anything like that
for those other targets, AFAIK.  Instead, the Makefile should use
$(EXEEXT) or somesuch to account for the issue.  I don't see why OS/2
should be handled differently.  But maybe I'm missing something.

In general, settling for 'foo.exe' when the target is 'foo' can easily
cause false positives, so such a change should IMO not be introduced
without a serious discussion of the possible downsides and
regressions.