Curious Windows GHCi linker behaviour .o vs. .dll

[cg]

On 10/11/2014 11:44 PM, Herbert Valerio Riedel wrote:
>
> Well, I basically used a MSYS2 environment setup according to
> https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation/Windows
>

I reproduced the issue with ghc-7.8.3-x86_64.

Are you using 64-bit ghc? If so, it looks the issue is 64-bit only.

>
>
>> Actually both _tzset and tzset exist in include/time.h, only tzset is old
>> style name. They will be linked as the same function __imp__tzset.
>
> What do you mean by "old style"? And more importantly, what
> foreign-import line shall be used that works both on Windows and
> non-Windows platforms, compiled as well as interpreted in GHCi?
>

I meant OLDNAME in MS's jargon, because they deprecate tzset [1],
then call it 'old'. But it it still usable.

[1] http://msdn.microsoft.com/en-us/library/ms235451.aspx

--
cg