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Giloo edited this page Nov 3, 2024 · 14 revisions

  • Did you use the --recursive while cloning gdl ? Otherwise it will not compile.

  • GDL now uses by default the wxWidgets engine for all graphics, plot windows and widgets. You can optionally use the X11 driver (for PLOTS only), first by enabling X11 during the compilation (cmake ... -DX11=ON ...) then by calling GDL with the -X flag or setting the env. var GDL_DISABLE_WX_PLOTS. X11 is not available under Windows.

There are still issues with the wxWidgets engine under Linux, that you may encounter:

  • wxWidgets (using GTK) do not function well with fvwm2 (window positioning mainly). However see here.

  • DEVICE,SET_GRAPHICS_FUNCTION=x may not work correctly due to the absence of those basic graphic functions in the PANGO library, and in consequence in the in wxWidgets3.x. Some utilities (Graffer, Look) use this command to draw crosshairs on plots, and this PANGO 'feature' may prevent crosshair lines to be properly erased, making a mess of the plot.

  • Misshaped Hershey Fonts in PostScript device: this is a plplot bug, however see this workaround

  • gcc 13 (and perhaps other compiler) may report "multiply defined" error messages at link time and refuse to link: add -DSPLIT_SOURCES_FILES=OFF to the cmake command to solve this. Of course this means you cannot rely totally on the build_gdl.sh command file to build gdl. Instead, go to the gdl/build folder, type cmake -DSPLIT_SOURCES_FILES=OFF .., then go back to the home directory and re-type gdl/src/build_gdl.sh build.

Older issues, not sure if they still hold:

  • In presence of Anaconda (a python installer) there may be some troubles compiling GDL, see here

  • old GCC. It is still possible to compile GDL 1.0 versions (rc1, rc2, rc3) with old GC 4.8 versions (e.g. gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.4) but make check show that some numerical functions misbehave.

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