Re: [libmicrohttpd] Problems building (configuring) under Cygwin

[Jordan Henderson]

I was able to build under cygwin by removing the use of -no-undefined from the cygwin rule in configure.ac.

Seems like there was a change in gcc that made this an error.

http://cygwin.com/ml/cygwin/2013-07/msg00414.html

There's discussion in that thread about the correct way to fix this and I wasn't quite clear if my approach was right, so I didn't include a patch.  LRN, who was in on this discussion might have some perspective.

On Thu, Jan 23, 2014 at 1:59 AM, LRN <address@hidden> wrote:

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On 23.01.2014 6:45, Jordan Henderson wrote:
> Hi,
>
> Attempting to configure libmicrohttpd-0.9.33 under the latest
> Cygwin (CYGWIN_NT-6.1 Jordan-THINK 1.7.27(0.271/5/3) 2013-12-09
> 11:54 x86_64 Cygwin) I'm getting the error described here:
>
> http://lists.gnu.org/archive/html/libmicrohttpd/2010-08/msg00013.html
>
>
>
Configure stops telling me that my system doesn't support
> pthreads.
>
> I saw a later patch that appears to have backed out some of the
> changes recommended above (described here):
>
> http://lists.gnu.org/archive/html/libmicrohttpd/2011-03/msg00023.html
>
>
>
I attempted to restore the changes recommended here to the new
> baseline, but I'm still getting the error.
>
> I understand that the error about not supporting pthreads is a
> false negative and indicates something else.  Before I try to dig
> in and rediscover what others may be doing here, I thought I'd ask
> if there is anyone using libmicrohttpd under Cygwin offer any
> help?

You shouldn't need plibc on Cygwin, the change from 2011 sounds like
the right thing.

I've just built a MSYS2 version of libmicrohttpd, it detected pthreads
at configure time correctly. MSYS2 (and Cygwin) provides pthreads as
part of the main runtime, so it's impossible to miss.

That said, i don't use x86_64 versions of either MSYS2 or MinGW, so
maybe there's some weirdness on that front that escaped my notice.

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--
----Jordan Henderson

"I can picture in my mind a world without war, a world without hate. And I can picture us attacking that world, because they'd never expect it."
  - Jack Handey