Re: [Gnuplot-info] Font problem in 2-lines titles with cairo terminals

[Tatsuro M. <tma...@ya...>]

For wxt terminal, something may be wrong for your intall of libwxgtk for build gnuplot.

In build directory, configure log file "config.log" exist,
open config.log, and search keyword "wx-config" and what is reported.
Please report here.

For qt terminal, qt libraries should be installed.
Note that hey must be massive libraries.

I recomend qt5 because qt4 is obsolate.
The below is the cygwin's build depends for qt5 library
libQt5Core-devel, libQt5Gui-devel, libQt5Svg-devel,
perhaps similar libs are required for the Debian.

Tatsuro



> ----- Original Message -----
> 
> From: "hchiPer" <hc...@gm...>
> To: "Peter Rockett" <p.r...@sh...>
> Cc: "gnu...@li..." <gnu...@li...>
> Date: 2022/02/18 金 04:48
> Subject: Re: [Gnuplot-info] Font problem in 2-lines titles with cairo terminals
> 
> 
> Thanks a lot Peter.
> 
> In a virtual machine with the same distro (but 32 bits instead of 64) I 
> have installed successfully (sudo apt install ...):
> - libwxtgtk3.0-gtk3-dev
> - libpango1.0-dev
> - libreadline-dev
> - libgd-dev
> 
> I compiled gnuplot (./configure ans make). And the cairo terminals were 
> available. I never thought I could make it! The "ampersand problem" is 
> solved with gnuplot 5.4.3 :)
> 
> One thing is that wxt (and qt) terminals are not available. I also often 
> use wxt (and sometimes qt). In ./configure summary I read this:
> 
> - wxt terminal: no (requires c++, wxWidgets>2.6, cairo>0.9, pango>1.22)
> - Qt terminal: no (use --with-qt or --with_qt=qt4)
> 
> cairo and pango are not the problem since they were required for the 
> cairo terminals, which work fine.
> 
> For wxt, it seems I need to install c++ but I don't know exactly which 
> package (apt list give a lot of possibilities) and libwxgtk3.0-gtk3-dev 
> might be a wronk package...?
> 
> For qt, I tried ./configure --with-qt and ./configure --with-qt=qt4, but 
> the same warning is still there.
> 
> Anyway I am very happy (and proud) to have been able to compile gnuplot 
> successfully, thanks to your help.
> 
> 
> 
> 
> Le 17/02/22 à 09:48, Peter Rockett a écrit :
> >
> > The wxgtk-3.0 and readline8 versions will probably work. They are just 
> > later versions and unlikely to break things.
> >
> > You will need to install the *-dev variants of the libraries to build 
> > anything. ('dev' for developer.) They provide the necessary header 
> > files without which you will get "header files do not exist" errors.
> >
> > P.
> >
> >
> > On 17/02/2022 07:51, hchiPer wrote:
> >>
> >> Thanks for your reply.
> >>
> >> libwxgtk2.8-dev:
> >> only libwxgtk3.0-gtk3-devavailable and libwxgtk3.0-gtk3-0v5already 
> >> installed
> >>
> >> libpango1.0-dev:
> >> libpango1.0-devavailable and libpango-1.0-0already installed
> >>
> >> libreadline5-dev:
> >> libreadline-dev(8.1-1) available and libreadline8already installed
> >>
> >> I'll try this and Tatsuro's advices on a virtual machine first (as I 
> >> wrote, I'm not an long time linux user and I fear to make something 
> >> wrong that might corrupt my system).
> >>
> >> Once again, thanks a lot for your help. Step by step I'm going deeper 
> >> in linux knowledge.
> >>
> >>
> >>
> >> Le 16/02/22 à 10:09, Peter Rockett a écrit :
> >>> On 15/02/2022 22:02, hchiPer wrote:
> >>>> The distro I have installed is  Q4OS 4.7 (www.q4os.org). I began 
> >>>> using it because it was said to require few resources and to run 
> >>>> smoothly on rather old machines (mine is more than 10 years old).
> >>>>
> >>>> I installed gnuplot 5.4.2 on another computer under Win10, and the 
> >>>> font problem doesn't happen.
> >>>>
> >>>> I suspect the cause of the problem is in the cairo or pango 
> >>>> library, but I am not sure.
> >>>>
> >>>> I was indeed able to compile 5.4.3, but without the terminals I use 
> >>>> to use (wxt, pngcairo, pdfcairo), it is not very useful.
> >>>
> >>> On Debian (and derivatives) you need to install libwxgtk2.8-dev (for 
> >>> the wxt terminal), libpango1.0-dev (for the cairo terminals) and 
> >>> libreadline5-dev (readline support (editing command lines). Follow 
> >>> the configure/make steps below and you should have wxt and the two 
> >>> cairo terminals. Carefully inspect the final lines of the build 
> >>> output since this tells you what has and has not been included; if 
> >>> anything you need is missing you will need to hunt down the 
> >>> necessary dependency.
> >>>
> >>> Peter
> >>>
> >>>
> >>>>
> >>>> Thanks anyway for all your help :)
> >>>>
> >>>>
> >>>> Le 15/02/22 à 20:47, Norwid Behrnd a écrit :
> >>>>> On Tue, 15 Feb 2022 19:54:56 +0100
> >>>>> hchiPer<hc...@gm...> wrote:
> >>>>>
> >>>>>> It seems 5.4.3 brings the solution, but I'm unable to find a .deb
> >>>>>> package. And unluckily I'm not able to compile myself.
> >>>>> Perhaps I missed it, but what is the Linux «based on Debian 11» you
> >>>>> use?  Is it one of the ubuntu family, like Xubuntu?  Is it Linux 
> >>>>> Mint'
> >>>>> /Mint/, or the LDME 4 closer to Debian than Mint's Mint? Perhaps
> >>>>> something specific to your distribution contributes to the problems
> >>>>> you report which might be beyond reach of Gnuplot.
> >>>>>
> >>>>> Curiosity aside, I just fetched Gnuplot (Version 5.4 patchlevel 3,
> >>>>> last modified 2021-12-24) from sourceforge, decompressed the tar.gz
> >>>>> (4.5 Mo).  The INSTALL file (no file extension) describes well what
> >>>>> has to be done to perform the installation, which starts by entering
> >>>>> the decompressed archive from the terminal.  Then run from the
> >>>>> terminal `./configure`, followed by `make`, and `make check`. For
> >>>>> the then following installation /per se/, you possibly need elevated
> >>>>> administrator privileges, i.e., `sudo make install`. True, you have
> >>>>> to request `synaptic` once to get GNU Make (e.g., GNU Make 4.3 by
> >>>>> 2020) to run the make command.  In my case, it overwrites synaptic's
> >>>>> earlier installation of Gnuplot 5.4 patchlevel 2 from Debian's
> >>>>> repositories.
> >>>>>
> >>>>> Caveat: The installation based on the sourceforge archive does not
> >>>>> offer you access to wxterm, pngcairo, epscairo, or pdfcairo terminal.
> >>>>> Yet have the postscript terminal instead to generate a .eps with the
> >>>>> two-line plot title with escaped ampersand and both lines in serif
> >>>>> fonts greater than usually seen (by appearance /likely/ a different
> >>>>> serif font than the by Bistream Vera).
> >>>>
> >>>>
> >>>> _______________________________________________
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