A solution for "error: command 'gcc' failed with exit status 1"

[ninmiao]

I met the error when I try to install the pyworld 0.2.10 under WSL(Ubuntu 20.04) with Python 3.6.12.
I found the inappropriate gcc version would fail the installation with "error: command 'gcc' failed with exit status 1" as follows.
My solution is degrading the gcc version into gcc-7. As my test, gcc 7.5.0 can pass the compile of pyworld 0.2.10.

Collecting pyworld==0.2.10
  Using cached pyworld-0.2.10.tar.gz (73 kB)
Collecting numpy
  Using cached numpy-1.19.5-cp36-cp36m-manylinux2010_x86_64.whl (14.8 MB)
Collecting cython>=0.24.0
  Using cached Cython-0.29.24-cp36-cp36m-manylinux1_x86_64.whl (2.0 MB)
Building wheels for collected packages: pyworld
  Building wheel for pyworld (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: /home/li/miniconda3/envs/fastspeech2/bin/python -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-pcy279a0/pyworld_3eaf2492f9fc4999ac69c02051599e29/setup.py'"'"'; __file__='"'"'/tmp/pip-install-pcy279a0/pyworld_3eaf2492f9fc4999ac69c02051599e29/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-_we7kem9
       cwd: /tmp/pip-install-pcy279a0/pyworld_3eaf2492f9fc4999ac69c02051599e29/
  Complete output (19 lines):
  /home/li/miniconda3/envs/fastspeech2/lib/python3.6/site-packages/setuptools/dist.py:720: UserWarning: Usage of dash-separated 'description-file' will not be supported in future versions. Please use the underscore name 'description_file' instead
    % (opt, underscore_opt)
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-x86_64-3.6
  creating build/lib.linux-x86_64-3.6/pyworld
  copying pyworld/__init__.py -> build/lib.linux-x86_64-3.6/pyworld
  running build_ext
  building 'pyworld.pyworld' extension
  creating build/temp.linux-x86_64-3.6
  creating build/temp.linux-x86_64-3.6/pyworld
  creating build/temp.linux-x86_64-3.6/lib
  creating build/temp.linux-x86_64-3.6/lib/World
  creating build/temp.linux-x86_64-3.6/lib/World/src
  gcc -pthread -B /home/li/miniconda3/envs/fastspeech2/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -Ilib/World/src -I/home/li/miniconda3/envs/fastspeech2/include/python3.6m -I/tmp/pip-install-pcy279a0/pyworld_3eaf2492f9fc4999ac69c02051599e29/.eggs/numpy-1.19.5-py3.6-linux-x86_64.egg/numpy/core/include -c pyworld/pyworld.cpp -o build/temp.linux-x86_64-3.6/pyworld/pyworld.o
  gcc: error: pyworld/pyworld.cpp: No such file or directory
  error: command 'gcc' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for pyworld
  Running setup.py clean for pyworld
Failed to build pyworld

[jreus]

Just a bit more helpful info..
Pyworld 0.3.0 needs gcc 7.5... I have gcc 9 on the latest ubuntu LTS
I know the target gcc version by checking python's gcc version...

python -VV
Python 3.9.5 (default, Jun  4 2021, 12:28:51) 
[GCC 7.5.0]

So... I can install gcc-7 and g++-7

sudo apt-get install gcc-7 g++-7

Then I need to setup my alternatives, so that I can easily assign different binary applications to the gcc command..
I give gcc-9 a higher priority than gcc-7, so it will be used by default..

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 20 --slave /usr/bin/g++ g++ /usr/bin/g++-9 
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 10 --slave /usr/bin/g++ g++ /usr/bin/g++-7 

Then, to choose which app gets associated with gcc, I run this..

sudo update-alternatives --config gcc
There are 2 choices for the alternative gcc (providing /usr/bin/gcc).

  Selection    Path            Priority   Status
------------------------------------------------------------
* 0            /usr/bin/gcc-9   20        auto mode
  1            /usr/bin/gcc-7   10        manual mode
  2            /usr/bin/gcc-9   20        manual mode

Press <enter> to keep the current choice[*], or type selection number: 1
update-alternatives: using /usr/bin/gcc-7 to provide /usr/bin/gcc (gcc) in manual mode

And then to switch back, just run sudo update-alternatives --config gcc again and choose auto mode.

[JeremyCCHsu]

Closed due to inactivity. thx for the discussions.