Hi Mortimer,
On 2020-09-06 12:54 p.m., Mortimer Hemmit wrote:
Hi Stefan,
Apologies for breaking the reply chain; I wasn't subscribed to the
list earlier, so this is the only message I could reply to. Now I
should be able to reply to other messages.
Thanks for your email. I don't think that ./b2 has the option to
specify the python version within --with-python - I think only
./bootstrap does. When I tried
./b2 --with-python=3.7
I got;
*****BEGIN OUTPUT*****
error: wrong library name 'python=3.7' in the --with-<library> option.
*****END OUTPUT*****
Then, I tried invoking ./b2 with option python=3.7.
sudo ./b2 python=3.7 --with-python
*****BEGIN OUTPUT*****
/Users/Mort/Downloads/boost_1_74_0/tools/build/src/build/feature.jam:491:
in feature.validate-value-string from module feature
error: "3.7" is not a known value of feature <python>
error: legal values: "2.7"
you are entirely right, there is no `--with-python` option to `b2`.
Sorry for sending you down a wrong route.
I think what you need is described in
https://www.boost.org/doc/libs/1_74_0/libs/python/doc/html/building/configuring_boost_build.html
Create a ~/user-config.jam file containing the line "using python : 3.7 ;"
This informs Boost.Build of the availability of that Python version
(depending on your system you may want to add more parameters to specify
paths, library name, etc.). You could define multiple versions (one per
line), in which case the option `./b2 python=<python-version>` will
allow you to select one.
Hope this helps,
Stefan
--
...ich hab' noch einen Koffer in Berlin...
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