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--- wiki:development:glx-xlib-workaround [2017/11/04 11:09]
ionic Fix typo in cleaning instruction.
+++ wiki:development:glx-xlib-workaround [2020/01/23 12:47]
uli42 [Approach]
@@ Line 11: / Line 11: @@
 Use a wrapper/proxy library provided by Mesa. The applications will use the supplied libGL.so, which in turn uses the lib interface to talk to the X server (nxagent) rather than the GLX interface. From the applications' perspective, they have GLX 1.4.
+Please note: the following is not current anymore but is kept here for reference. Please consult https://mesa3d.org/llvmpipe.html for a description how to compile the required library.
 ==== Ubuntu 14.04 ====
@@ Line 30: / Line 31: @@
 <code>
-emerge -av app-portage/gentoolkit dev-util/scons dev-python/mako
+emerge -1av app-portage/gentoolkit dev-util/scons dev-python/mako
 </code>
@@ Line 37: / Line 38: @@
 mkdir -p /usr/local/share/mesa-libgl-xlib
 </code>
 Place the following line in a suitable place - either in your .bashrc or in the script that calls the individual application:
 <code>
@@ Line 42: / Line 44: @@
 </code>
-Configure portage to keep the working area that is used to compile the Mesa package. Before doing so, ensure that the USE flags for media-libs/mesa are configured to your liking.
+Configure portage to extract and patch the Mesa package into a known location. Before doing so, ensure that the USE flags for media-libs/mesa are configured to your liking.
 <code>
-mkdir -p /etc/portage/env
+mesa_version="$(equery -q list media-libs/mesa -F '$version')"
-echo 'FEATURES="noclean"' > /etc/portage/env/features-noclean
+ebuild "/usr/portage/media-libs/mesa/mesa-${mesa_version}.ebuild" prepare
-echo 'media-libs/mesa features-noclean' >> /etc/portage/package.env
-emerge -av media-libs/mesa
 </code>
 Now compile the library and move it over to the storage location:
 <code>
-export MESA_VERSION=$(equery -q list media-libs/mesa -F '$version')
+cd "/var/tmp/portage/media-libs/mesa-${mesa_version}/work/mesa-${mesa_version}"
-cd /var/tmp/portage/media-libs/mesa-${MESA_VERSION}/work/mesa-${MESA_VERSION}
 scons libgl-xlib
-cp build/linux-x86_64-debug/gallium/targets/libgl-xlib/* /usr/local/share/mesa-libgl-xlib/
+cp -av build/linux-x86_64-debug/gallium/targets/libgl-xlib/* /usr/local/share/mesa-libgl-xlib/
 </code>
-Warning: The ''noclean'' feature will result in old versions of the working area for media-libs/mesa stacking up in /var/tmp/portage over time. Remove them from time to time - or right now after compiling and saving the library:
+Cleanup:
 <code>
-cd
+ebuild "/usr/portage/media-libs/mesa/mesa-${mesa_version}.ebuild" clean
-ebuild /usr/portage/media-libs/mesa/mesa-${MESA_VERSION}.ebuild clean
 </code>

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