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Blosc / python-blosc

A Python wrapper for the extremely fast Blosc compression library

Home Page:https://www.blosc.org/python-blosc/python-blosc.html

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Failed to build blosc

PREM1980 opened this issue · comments

commented

I'm using this package and while building, get the following error -

Building wheels for collected packages: blosc
Building wheel for blosc (PEP 517): started
Building wheel for blosc (PEP 517): finished with status 'error'
ERROR: Command errored out with exit status 1:
command: /usr/local/bin/python /usr/local/lib/python3.7/site-packages/pip/_vendor/pep517/in_process.py build_wheel /tmp/tmpnfdwbr3n
cwd: /tmp/pip-install-jlvlkum/blosc
Complete output (84 lines):
Not searching for unused variables given on the command line.
-- The C compiler identification is GNU 8.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:4 (ENABLE_LANGUAGE):
No CMAKE_CXX_COMPILER could be found.

Tell CMake where to find the compiler by setting either the environment
variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
to the compiler, or to the compiler name if it is in the PATH.

-- Configuring incomplete, errors occurred!
See also "/tmp/pip-install-jlvlkum_/blosc/cmake_test_compile/build/CMakeFiles/CMakeOutput.log".
See also "/tmp/pip-install-jlvlkum/blosc/cmake_test_compile/build/CMakeFiles/CMakeError.log".
Not searching for unused variables given on the command line.
CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
-- Configuring incomplete, errors occurred!
See also "/tmp/pip-install-jlvlkum/blosc/_cmake_test_compile/build/CMakeFiles/CMakeOutput.log".

Trying "Ninja" generator
Trying "Ninja" generator - failure

Trying "Unix Makefiles" generator
Trying "Unix Makefiles" generator - failure

scikit-build could not get a working generator for your system. Aborting build.

Building Linux wheels for Python 3.7 requires a compiler (e.g gcc).
It can be installed using debian package manager:

sudo apt-get install build-essential

To build compliant wheels, consider using the manylinux system described in PEP-513.
Get it with "dockcross/manylinux-x64" docker image:

https://github.com/dockcross/dockcross#readme

For more details, please refer to scikit-build documentation:

http://scikit-build.readthedocs.io/en/latest/generators.html#linux

ERROR: Failed building wheel for blosc
Running setup.py clean for blosc
Failed to build blosc

commented

Judging by this error "No CMAKE_CXX_COMPILER could be found.", I'd say that you need to install a C++ compiler. Technically C-Blosc does not need a C++ compiler if one does not want the snappy codec (which is disabled by default), but detecting one is the default in cmake. I'll open a ticket for this.