Re: Gnuplot version 5.0 is now available

[Achim G. <Str...@ne...>]

Ethan A Merritt writes:
> Can you point to some documentation or policy about when that
> pkg-config field is relevant or necessary?

It's used in both Cygwin and openSUSE, but instead of looking at the .pc
file please try

pkg-config --variable=host_bins QT5Core

as there may be some fallback rules to fill in empty slots (I'm not
overly familiar with how the .pc files are put together).  If not, then
the configure rule in question should probably be re-written using the
PKG_CHECK_VAR autoconf macro to provide a fallback specific to gnuplot.

In any case using exec_prefix is clearly wrong (it works on some
installations purely by accident) and host_bins is what Qt5 introduced
as a repleacement for the tool variables in Qt4.

https://qt.gitorious.org/qt/qtbase/source/3fed060b94ff04131de603d4d668ae7853e50a53:dist/changes-5.0.0

--8<---------------cut here---------------start------------->8---
 * moc_dir, rcc_dir and some other tool variables are not defined in Qt's .pc files any more;
the generic host_bins is defined instead.
--8<---------------cut here---------------end--------------->8---

> ./configure --disable-plugins
> is supposed to work. Does it not?

Yes (I've been using that), but AFAICS that disables plugin support
completely.  I just wanted to find a way to not compile the demo plugin
until I can figure out why it doesn't link and there doesn't seem to be
any.

> If you don't mind my asking, who is the "we" in this case?

My colleagues and myself at work.


Regards,
Achim.
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