Created attachment 374742 [details] The output of emerge --info media-gfx/blender-2.70 won't emerge without PYTHON_SINGLE_TARGET="python3_3" in /etc/portage/make.conf. When running emerge --ask --verbose --newuse --deep --update --with-bdeps=y @world I get the message !!! Problem resolving dependencies for dev-util/gtk-doc from @selected ... done! !!! The ebuild selected to satisfy "dev-util/gtk-doc" has unmet requirements. - dev-util/gtk-doc-1.20::gentoo USE="-debug -doc -emacs -highlight -test -vim" PYTHON_SINGLE_TARGET="-python2_6 -python2_7" PYTHON_TARGETS="python2_7 -python2_6" The following REQUIRED_USE flag constraints are unsatisfied: exactly-one-of ( python_single_target_python2_6 python_single_target_python2_7 ) If I change the PYTHON line in make.conf to PYTHON_SINGLE_TARGET="python2_7" or PYTHON_TARGETS="python2_7 python3_3" or comment out all three lines it doesn't help -- it then complains that blender has unmet requirements and the emerge fails. This doesn't seem (to me) the same bug as 465662. Here is my emerge --info as an attachment
*** This bug has been marked as a duplicate of bug 465662 ***
I don't understand how this is a bug. It doesn't work with python2_7 or python3_2. read https://www.gentoo.org/proj/en/Python/python-r1/user-guide.xml
I think it is a bug because with PYTHON_TARGETS="python2_7 python3_3" PYTHON_SINGLE_TARGET="python3_3" set in /etc/portage/make.conf I can emerge media-gfx/blender-2.70 but, when I run emerge --ask --verbose --newuse --deep --update --with-bdeps=y @world I get These are the packages that would be merged, in order: Calculating dependencies !!! Problem resolving dependencies for dev-util/gtk-doc from @selected ... done! !!! The ebuild selected to satisfy "dev-util/gtk-doc" has unmet requirements. - dev-util/gtk-doc-1.20::gentoo USE="-debug -doc -emacs -highlight -test -vim" PYTHON_SINGLE_TARGET="-python2_6 -python2_7" PYTHON_TARGETS="python2_7 -python2_6" The following REQUIRED_USE flag constraints are unsatisfied: exactly-one-of ( python_single_target_python2_6 python_single_target_python2_7 ) The above constraints are a subset of the following complete expression: python_single_target_python2_6? ( python_targets_python2_6 ) python_single_target_python2_7? ( python_targets_python2_7 ) exactly-one-of ( python_single_target_python2_6 python_single_target_python2_7 ) (dependency required by "@selected" [set]) (dependency required by "@world" [argument]) If I then set PYTHON_TARGETS="python2_7 python3_3" PYTHON_SINGLE_TARGET="python2_7" in make.conf, blender won't emerge Calculating dependencies - !!! Problem resolving dependencies for media-gfx/blender ... done! !!! The ebuild selected to satisfy "media-gfx/blender" has unmet requirements. - media-gfx/blender-2.70::gentoo USE="boost bullet dds elbeem ffmpeg game-engine nls openal openexr openmp opennl sdl sse sse2 tiff -collada -colorio -cycles -debug -doc -fftw -jack -jpeg2k -ndof -openimageio -player -redcode -sndfile" PYTHON_SINGLE_TARGET="-python3_3" PYTHON_TARGETS="python3_3" The following REQUIRED_USE flag constraints are unsatisfied: python_single_target_python3_3 The above constraints are a subset of the following complete expression: python_single_target_python3_3? ( python_targets_python3_3 ) exactly-one-of ( python_single_target_python3_3 ) player? ( game-engine ) redcode? ( jpeg2k ffmpeg ) cycles? ( boost openexr tiff ) nls? ( boost ) game-engine? ( boost ) There seems to be only one workaround for this -- with PYTHON_SINGLE_TARGET="python3_3" don't use --newuse and ignore any side effects there may be in not recompiling packages which have their USE variables changed by the maintainers. However, if gtk-doc (or gimp or others) need to be updated then I will have to unmerge blender, do the update, and remerge blender again... I have read the link to python-r1/usr-guide.xml and I can't see anything there that solves this problem. I accept that I may be missing something here... 8(( Chris
