Re: Problems with time.h from an inexperienced user?

[Csaba Raduly <rcsaba@gmail.com>]

Hi Hal,

On Thu, Jul 3, 2014 at 11:37 PM, Hal Wills wrote:
> Apparently there is a discrepancy between how Cygwin handles timeval.h
> and how most Linux distributions handle it, because I am unable to
> build htop and ncmpcpp with visualizer support on Cygwin.
>
> Here are the errors when I attempt to 'make' ncmpcpp and './configure' htop:
>
>
> then mv -f ".deps/cmdargs.Tpo" ".deps/cmdargs.Po"; else rm -f
> ".deps/cmdargs.Tpo"; exit 1; fi
> In file included from cmdargs.cpp:41:0:
> visualizer.h:72:2: error: 'timeval' does not name a type
>   timeval m_timer;
>   ^
> Makefile:444: recipe for target 'cmdargs.o' failed
> make[2]: *** [cmdargs.o] Error 1
> make[2]: Leaving directory '/home/ullr/ncmpcpp/src'
> Makefile:305: recipe for target 'all-recursive' failed
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory '/home/ullr/ncmpcpp'
> Makefile:217: recipe for target 'all' failed
> make: *** [all] Error 2
>
>
> In file included from Header.h:13:0,
>                  from Settings.h:15,
>                  from AvailableMetersPanel.h:12,
>                  from AvailableMetersPanel.c:8:
> Meter.h:88:19: error: field 'time' has incomplete type
>     struct timeval time;
>                    ^

This _may_ be due to differences in how one system file includes another.

You could run the following on both Cygwin and Linux and try to figure
out the differences:
gcc -E ...... > cmdargs.i
gcc -H ..... 2> cmdargs.include-tree

Csaba
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