Relevant log snippet: [1506/1516] cd /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs && /usr/bin/sphinx-build -b html -d /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs/_ doctrees-html -q /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src/docs /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs/html FAILED: docs/CMakeFiles/docs-llvm-html cd /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs && /usr/bin/sphinx-build -b html -d /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs/_doctrees-htm l -q /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src/docs /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs/html Traceback (most recent call last): File "/usr/lib/python-exec/python2.7/sphinx-build", line 6, in <module> from pkg_resources import load_entry_point File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 3037, in <module> @_call_aside File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 3021, in _call_aside f(*args, **kwargs) File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 3050, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 655, in _build_master ws.require(__requires__) File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 969, in require needed = self.resolve(parse_requirements(requirements)) File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 855, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'typing' distribution was not found and is required by Sphinx [1507/1516] cd /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs && /usr/bin/sphinx-build -b man -d /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs/_doctrees-man -q /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src/docs /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs/man FAILED: docs/CMakeFiles/docs-llvm-man cd /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs && /usr/bin/sphinx-build -b man -d /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs/_doctrees-man -q /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src/docs /var/tmp/portage/sys-devel/llvm-4.0.1/work/llvm-4.0.1.src-abi_x86_64.amd64/docs/man Traceback (most recent call last): File "/usr/lib/python-exec/python2.7/sphinx-build", line 6, in <module> from pkg_resources import load_entry_point File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 3037, in <module> @_call_aside File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 3021, in _call_aside f(*args, **kwargs) File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 3050, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 655, in _build_master ws.require(__requires__) File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 969, in require needed = self.resolve(parse_requirements(requirements)) File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 855, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'typing' distribution was not found and is required by Sphinx Build fails shortly thereafter. Emerging dev-python/typing beforehand fixes the build issue. This is probably only relevant if you have USE="docs".
It's a problem inside dev-python/sphinx. What version of that package do you have?
=dev-python/sphinx-1.6.3-r1 It has dev-python/typing[${PYTHON_USEDEP}] only under USE=test. Fails for me as: $ sphinx-build --verion Traceback (most recent call last): File "/usr/lib/python-exec/python3.4/sphinx-build", line 6, in <module> from pkg_resources import load_entry_point File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 3037, in <module> @_call_aside File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 3021, in _call_aside f(*args, **kwargs) File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 3050, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 655, in _build_master ws.require(__requires__) File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 969, in require needed = self.resolve(parse_requirements(requirements)) File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 855, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'typing' distribution was not found and is required by Sphinx
Thanks, that explains it. My trivial grep obviously didn't notice the conditional ;-).
Fixed.
*** Bug 626030 has been marked as a duplicate of this bug. ***
