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wiki:development:glx-xlib-workaround [2020/06/02 19:11]
uli42 [Matlab 2019b] 		wiki:development:glx-xlib-workaround [2020/08/20 20:24]
uli42 add helper script with LD_PRELOAD
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 ==== Mesa 19 and newer ==== ==== Mesa 19 and newer ====
-Please note: the instructions below are valid for olter Mesa releases. In Mesa 19 //meson// is recommended for building. Please consult https://mesa3d.org/llvmpipe.html for a basic compilation instruction. Since those instructions will not work out of the box (Error: "gallium-xlib conflicts+Please note: the instructions below are valid for older Mesa releases. In Mesa 19 //meson// is recommended for building. Please consult https://mesa3d.org/llvmpipe.html for a basic compilation instruction. Since those instructions will not work out of the box (Error: "gallium-xlib conflicts
 with any dri driver") as of Mesa 19.3.2 you need to call //meson// with some further parameters like this: with any dri driver") as of Mesa 19.3.2 you need to call //meson// with some further parameters like this:
 <code> <code>
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 <code> <code>
 #!/bin/sh #!/bin/sh
-LD_LIBRARY_PATH=<your directory>/libgl-xlib exec "$@"+LD_LIBRARY_PATH=<your directory>/libgl-xlib:${LD_LIBRARY_PATH} exec "$@"
 </code> </code>
  
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 $ x2goglx glxinfo $ x2goglx glxinfo
 </code> </code>
 +
 +Some software modifies LD_LIBRARY_PATH itself. In that case you might be successful with LD_PRELOAD. Instead of setting LD_LIBRARY_PATH point to a directory you set LD_PRELOAD to point to the generated library itself:
 +<code>
 +#!/bin/sh
 +LD_PRELOAD=<your directory>/libgl-xlib/libGL.so exec "$@"
 +</code>
 +
 ==== Ubuntu 14.04 ==== ==== Ubuntu 14.04 ====
  
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 Compile like this: Compile like this:
-```+<code>
 meson -D glx=gallium-xlib -D gallium-drivers=swrast -D platforms=x11 -D dri3=false -D dri-drivers="" -D vulkan-drivers="" -D buildtype=release -D optimization=3 -Dprefix=/usr/local/mesa-20.1.0/ meson -D glx=gallium-xlib -D gallium-drivers=swrast -D platforms=x11 -D dri3=false -D dri-drivers="" -D vulkan-drivers="" -D buildtype=release -D optimization=3 -Dprefix=/usr/local/mesa-20.1.0/
-```+</code>
  
 To make Matlab load the new driver modify Matlab's lib search path: To make Matlab load the new driver modify Matlab's lib search path:
 cp $MATLAB_DIRECTORY/bin/.matlab7rc.sh ~ cp $MATLAB_DIRECTORY/bin/.matlab7rc.sh ~
  
-Edit the file ~/.matlab7rc.sh, find the glnxa* section and add the path to you mesa library, e.g. /usr/local/mesa-20.1.0/lib/x86_64-linux-gnu, to LDPATH_PREFIX+Edit the file ~/.matlab7rc.sh, find the glnxa* section and add ''/usr/local/mesa-20.1.0/lib/x86_64-linux-gnu'' to LDPATH_PREFIX
  
 Add to your .profile: export MESA_GL_VERSION_OVERRIDE=3.0 Add to your .profile: export MESA_GL_VERSION_OVERRIDE=3.0
wiki/development/glx-xlib-workaround.txt ยท Last modified: 2021/10/25 21:01 by uli42

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