Re: Building with Qt depends on pkg-config, Qt 5 term doesn't work on OS X

[Mojca M. <moj...@gm...>]

On Mon, Feb 24, 2014 at 9:12 PM, Bastian Märkisch <bma...@we...> wrote:
> Am 24.02.2014 20:39, schrieb Ethan A Merritt:
>> On Monday, 24 February, 2014 20:28:05 Mojca Miklavec wrote:
>>> On Mon, Feb 24, 2014 at 7:25 PM, Ethan A Merritt wrote:
>>>
>>> The problem is that -I/opt/local/include seems to be the first
>>> argument to compiler "no matter what". I inspected the Makefiles a bit
>>> and it seems that this is set by CPPFLAGS. I'm not exactly sure what
>>> sets it, but the workaround seems to be to set
>>>      export INCLUDES="$QT_CFLAGS"
>>> which puts the paths to Qt5 in front of everything else. Without that,
>>> Qt4 is always found first.
>>>
>>> Despite this, I still believe that configuration should work properly
>>> when pkg-config is absent.
>>>
>>> Weird enough, after I have compiled gnuplot in a slightly different
>>> way (without excluding MacPorts libraries, but maybe only the timing
>>> has changed), I get
>>>
>>> gnuplot> plot sin(x)
>>> QIODevice::write: device not open
>>> QIODevice::write: device not open
>
> Adding this snippet to qt_flushOutBuffer() solves that problem:
>
>         if (!qt || !qt->socket.isValid())
>                 return;

This avoids the QIODevice warnings/errors. But in general I still get either

Terminal type set to 'qt'
gnuplot> plot sin(x)
Error: short read from gnuplot_qt socket
gnuplot> quit
$ Event not swallowed ! 1041
############### WRONG readEvent  0 6851

or

Terminal type set to 'qt'
gnuplot> plot sin(x)
Error: short read from gnuplot_qt socket
gnuplot> qt_processTermEvent received a GE_fontprops event. This
should not have happened

gnuplot> plot sin(x)

depending on how much I wait before quitting.

Mojca