Re: [ecasound] compile error building newest release on Cygwin

Hello there and thanks so much for your response. I ended up working around
the issue by backing up to the previous version of ecasound, but I will try
your work around with a newer version and get back to you when I can. Thank
you so much for your help.

On Sat, Jan 4, 2020, 11:01 AM Kai Vehmanen <kvlists@email-addr-hidden> wrote:

> Hi David,
>
> sorry for late reply.
>
> On Mon, 18 Nov 2019, David O'Toole wrote:
> > Hi, I'm having trouble getting Ecasound 2.9.2 release to compile on
> Cygwin. Below is a transcript of configuration and make, which fails with
> 'usleep not
> > declared in this scope'. Thanks in advance for any help or advice you
> can offer, let me know if I can help with more information.
>
> This might be not useful to you anymore, but in case you still have the
> Cygwin environment ready, maybe you can give this a try.
>
> kvutils: fix compilation errors for nanosleep/usleep
>
> https://github.com/kaivehmanen/ecasound/commit/4a802eb2b5f96d7aa521d83baa2698fec5ccc7e0
>
> This is a bit odd problem as configure found usleep:
>
> > checking for usleep... yes
>
> ... but when compiling, it fails:
>
> > libtool: compile: g++ -DHAVE_CONFIG_H -I. -I. -I.. -ffast-math
> -fstrict-aliasing -std=c++98 -DNDEBUG -DENABLE_DBC -g -O2 -MT kvu_utils.lo
> -MD -MP -MF
> > .deps/kvu_utils.Tpo -c kvu_utils.cpp -DDLL_EXPORT -DPIC -o
> .libs/kvu_utils.o
> > kvu_utils.cpp: In function 'int kvu_sleep(long int, long int)':
> > kvu_utils.cpp:680:9: error: 'usleep' was not declared in this scope
> > ret = usleep(seconds * 1000000 + nanoseconds / 1000);
> > ^~~~~~
>
> What I suspect happens it that -std=c++98 caused the compiler to take
> the namespaces more striclly and as the file has a "using namepsace std"
> at start, it fails to find usleep. The above commit attempts at a fix
> based on this hypothesis.
>
> Br, Kai

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Received on Sat Jan 4 20:15:01 2020