Hi Yuri, The configure script is actually determining first if it should use the module sysconfig or the module distutils.sysconfig depending on python version and platform. For version 3 it uses the former. This gives an incorrect location. I have edited the configure script to always choose distutils.sysconfig. However this gives /usr/local/lib/python3/dist-packages whereas sys.path contains /usr/local/lib/python3.5/dist-packages. I have added a symlink from/usr/local/lib/python3 to /usr/local/lib/python3.5
What a mess. I will consider virtualenv next time. Thank you, On Sun, Mar 6, 2016 at 4:06 PM, Yury V. Zaytsev <y...@shurup.com> wrote: > On Sun, 6 Mar 2016, Bernard GODARD wrote: > > If there is a configure option to specify this, I would be happy to learn >> it, but it is not --prefix. >> > > Hi, > > Sorry, I haven't read your original message attentively enough and > completely misinterpreted the nature of your question / complaint. I can > see now that you're talking about the great Debian-specific 'dist-packages' > hack and not the default prefix not being /usr. > > To be honest, I can't tell why it isn't working for you, because actually > the build system of nlopt calls AM_PATH_PYTHON macro to find out what the > $(pyexecdir) should be by querying the python interpreter you asked it to, > which in essence works like this: > > python -c "import sys; from distutils import > sysconfig;python_lib(1,0,prefix='/usr/local'))" > > On my old Debian machine it correctly returns for system Python 2.6 > > /usr/local/lib/python2.6/dist-packages > > Obviously, it doesn't work for you though, but either way, it must be > caused by Debian patches or a bug in the autotools macro, not a problem > with nlopt build system itself. > > If you want to get to the bottom of it, you have to find out why > $(pyexecdir) is set incorrectly. Or, you can forget about all this > Debian-specific pain and just use virtualenv. > > P.S. Just to make it clear, I'm not a developer of nlopt. > > > -- > Sincerely yours, > Yury V. Zaytsev >
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