I just try to play a little bit with opencl. It seems, that wings does not compile, if opencl is not installed. I have a system with hybrid graphics: root@lynx:/usr/local/portage/media-gfx/wings(36)# lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [NVS 5400M] (rev a1) root@lynx:/usr/local/portage/media-gfx/wings(37)# grep ^VIDEO /etc/make.conf VIDEO_CARDS="nouveau displaylink" If I set opencl in /etc/make.conf, 'emerge -uvDN world' tries to install ati-drivers. Is this to to be expected? root@lynx:/root(39)# emerge -pv --update --newuse --deep --with-bdeps=y --backtrack=30 --exclude "cross-armv7a-hardfloat-linux-gnueabi/gcc h5py grass root-docs" @world These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild N F ] x11-drivers/ati-drivers-15.9-r1:1::gentoo USE="modules qt4 -debug -gdm-hack -pax_kernel -static-libs" ABI_X86="32 (64)" 177,319 KiB [ebuild R ] sys-apps/hwloc-1.10.1-r1:0/5::gentoo USE="X cairo numa opencl* pci plugins svg xml -cuda -debug -gl -static-libs" ABI_X86="(64) -32 (-x32)" 0 KiB [ebuild R ] sci-libs/gdal-2.0.0-r1::local USE="armadillo aux_xml curl fits geos gif gml hdf5 java jpeg jpeg2k mysql netcdf odbc ogdi opencl* pdf perl png postgres python sqlite threads -debug -doc -mdb -spatialite -xls" PYTHON_TARGETS="python2_7 python3_4 -python3_3" 0 KiB [ebuild R ] media-gfx/imagemagick-6.9.2.0:0/6.9.2.0::gentoo USE="X bzip2 cxx djvu fftw fontconfig fpx graphviz hdri jbig jpeg jpeg2k lcms lqr lzma opencl* openexr openmp pango perl png postscript q32 raw svg tiff truetype wmf xml zlib -autotrace -corefonts -q64 -q8 -static-libs {-test} -webp" 0 KiB [ebuild R ] media-libs/opencv-2.4.10:0/2.4::gentoo USE="doc eigen examples ffmpeg gstreamer gtk java jpeg jpeg2k opencl* openexr opengl openmp png python threads tiff v4l vtk xine -cuda -ieee1394 (-ipp) -libav -pch -qt4 -testprograms" PYTHON_TARGETS="python2_7" 0 KiB Total: 5 packages (1 new, 4 reinstalls), Size of downloads: 177,319 KiB Fetch Restriction: 1 package (1 unsatisfied) Fetch instructions for x11-drivers/ati-drivers-15.9-r1: * The driver packages * amd-catalyst-15.9-linux-installer-15.201.1151-x86.x86_64.zip xvba-sdk-0.74-404001.tar.gz * need to be downloaded manually from * http://support.amd.com/en-us/download/desktop?os=Linux+x86 * and http://developer.amd.com/wordpress/media/2012/10/xvba-sdk-0.74-404001.tar.gz ... Reproducible: Always
It appears to be pulled in via sys-apps/hwloc[opencl].
*** This bug has been marked as a duplicate of bug 544708 ***