Re: [Gnuplot-info] Building gnuplot 6.0.0 on Linux Mint

[Ethan M. <eam...@gm...>]

On Thursday, 16 May 2024 00:25:24 PDT Hernán De Angelis wrote:
> Well it seems that I am now having some issues building as well ... QtApplication and QtWidget are apparently not found.
> 
> In file included from qtterminal/qt_term.cpp:78:
> 
> qtterminal/QtGnuplotApplication.h:49:10: fatal error: QApplication: No such file or directory
> 
>     49 | #include <QApplication>
> 
>        |          ^~~~~~~~~~~~~~
> 
> compilation terminated.

This was recently reported for Fedora also.  In the Fedora case the answer was to
add Qt6Widgets as a separate dependency in the autotools configure.ac script.
The package itself was already pulled in by other Qt dependencies, but apparently
without a separate test the compiler preprocessor flag  -I/usr/include/qt6/QtWidgets
was not added to the Makefile.  Adding that to environmental variable CXX_FLAGS
prior to running "./configure" may be sufficient to get you going for now.

	https://sourceforge.net/p/gnuplot/bugs/2705/

I am surprised that the various linux distros have diverged so much in how they
split up Qt components for packaging.

When you figure out what the missing piece is for building on Mint, please let me
know so I can add that fix to the gnuplot patchlevel 6.0.1 release.

	Ethan

> 
> make[4]: *** [Makefile:1044: qtterminal/qt_term.o] Error 1
> 
> make[4]: *** Waiting for unfinished jobs....
> 
> In file included from qtterminal/qt_embed_example.cpp:44:
> 
> qtterminal/qt_embed_example.h:51:10: fatal error: QWidget: No such file or directory
> 
>     51 | #include <QWidget>
> 
>        |          ^~~~~~~~~
> 
> compilation terminated.
> 
> make[4]: *** [Makefile:1044: qtterminal/qt_embed_example.o] Error 1
> 
> In file included from qtterminal/QtGnuplotInstance.cpp:45:
> 
> qtterminal/QtGnuplotWidget.h:49:10: fatal error: QWidget: No such file or directory
> 
>     49 | #include <QWidget>
> 
>        |          ^~~~~~~~~
> 
> compilation terminated.
> 
> make[4]: *** [Makefile:1044: qtterminal/QtGnuplotInstance.o] Error 1
> 
> In file included from qtterminal/gnuplot_qt.cpp:44:
> 
> qtterminal/QtGnuplotApplication.h:49:10: fatal error: QApplication: No such file or directory
> 
>     49 | #include <QApplication>
> 
>        |          ^~~~~~~~~~~~~~
> 
> compilation terminated.
> 
> 
> Den 2024-05-16 kl. 09:08, skrev Hernán De Angelis:
> > Peter,
> >
> > I always build gnuplot from source, although in openSUSE Tumbleweed. 
> > With 6.0.0 I had some problems too. Those were solved by looking at 
> > the error messages and installing the corresponding packages. I ended 
> > up having a lot of Qt6 packages but Since I build other things based 
> > in Qt  I do not see this as problematic. Perhaps the list below helps, 
> > with packages as they are referred to in openSUSE.
> >
> > Good luck
> >
> > H.
> >
> >
> > No package 'Qt6Core' found
> >
> > qt6-core-devel           | Development files for the Qt 6 Core library
> >
> >
> > No package 'Qt6Gui' found
> >
> > qt6-gui-devel         | Development files for the Qt 6 GUI libraries
> >
> >
> > No package 'Qt6Network' found
> >
> > qt6-network-devel           | Development files for the Qt 6 Network 
> > library
> >
> >
> > No package 'Qt6Svg' found
> >
> > qt6-svg-devel | Qt 6 SVG libraries - Development files
> >
> >
> > No package 'Qt6PrintSupport' found
> >
> > qt6-printsupport-devel | Development files for the Qt 6 PrintSupport 
> > library
> >
> >
> > No package 'Qt6Core5Compat' found
> >
> > qt6-qt5compat-devel | Qt 6 Core 5 Compat library - Development files
> >
> >
> > Den 2024-05-15 kl. 21:58, skrev Peter Rockett via gnuplot-info:
> >> Hi
> >>
> >> I am trying to build gnuplot 6.0.0 on Linux Mint 21.3 from source but 
> >> struggling with the Qt dependencies. I used to be able to build 
> >> gnuplot 5 no problem using just qt5-base-dev and libqt5svg5-dev but 
> >> running ./configure for gnuplot 6.0.0 with what seem to be the Qt6 
> >> versions of these same packages installed (qt6-base-dev and 
> >> libqt6svg6-dev) returns:
> >>
> >> No package 'Qt6Core' found
> >> No package 'Qt6Gui' found
> >> No package 'Qt6Network' found
> >> No package 'Qt6Svg' found
> >> No package 'Qt6PrintSupport' found
> >> No package 'Qt6Core5Compat' found
> >>
> >> Also, adding libqt6core5compat6-dev does not fix the last of these 
> >> errors (about 'Qt6Core5Compat').
> >>
> >> Does anybody know the list of Qt6 packages I need to satisfy the 
> >> above dependencies? From what I can see, qt6-base-dev should provide 
> >> the core, gui, network and print support stuff but it plainly does 
> >> not. Similarly, the svg package should provide the svg stuff.
> >>
> >> Peter
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> gnuplot-info mailing list
> >> gnu...@li...
> >> Membership management via: 
> >> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
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