[SciPy-Dev] Building SciPy from source for development

[Ralf Gommers]

On Wed, Sep 11, 2019 at 4:58 PM Isabel Kaspriskie <ikaspriskie at gmail.com>
wrote:

> Thank you everyone! The only things I had to do differently:
>
>    - Renamed miniconda3/lib/libgfortran.so
>    - apt installed g++
>
> In my build output, I saw that I was using both g++ and gcc, and I'm not
> sure why that might be,
>

That's because SciPy contained both C and C++ code.

but the build was successful and tests ran fine.
>

Glad that solved it.

Cheers,
Ralf



> Cheers,
> Isabel
>
> On Wed, Sep 11, 2019 at 4:57 PM Ralf Gommers <ralf.gommers at gmail.com>
> wrote:
>
>>
>>
>> On Tue, Sep 10, 2019 at 10:14 PM Ralf Gommers <ralf.gommers at gmail.com>
>> wrote:
>>
>>> Hi Isabel,
>>>
>>>
>>> On Tue, Sep 10, 2019 at 5:49 PM Isabel Kaspriskie <ikaspriskie at gmail.com>
>>> wrote:
>>>
>>>> Hello,
>>>>
>>>> I am setting up my development environment in order to start
>>>> contributing to the scipy repo. I have run into an error that I have not
>>>> been able to diagnose myself. When running `python setup.py install
>>>> --user`, I find the following error. The output is large, so I have only
>>>> copied the end of it, but please let me know if it is acceptable to attach
>>>> a text file of the output if that helps.
>>>>
>>>
>>> What you can do is put the full build log in a gist (
>>> https://gist.github.com/) and link to it. The actual error isn't
>>> visible, it could be many things (and I doubt it's that f2py warning). A
>>> full build log usually lets someone spot the issue quickly.
>>>
>>
>> Somehow Kai's answer bounced from the list, it may help too so here it is:
>>
>> An exit code of 127 occurs when a required command is not found in your
>> $PATH. In this case you are trying to compile SciPy using g++.
>>
>> I suspect this occurs because g++ is either not installed in which case
>> you will need to install it (in Ubuntu you can install these using ``apt
>> install g++``, this may require sudo). If it is already installed it may be
>> that miniconda does not find g++ as expected.
>>
>> Cheers,
>> Ralf
>>
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