Le jeudi 25 février 2021 à 23:20:16 UTC+1, brettpim a écrit :
> I am having a similar problem. I have pulled the master branch from git > and I when run > > # ./configure > > it finishes with > > configure: notice: the following SPKGs did not find equivalent system > packages: boost cbc coxeter3 gp2c isl libnauty libsemigroups pari_elldata > pari_galpol pari_nftables pari_seadata python3 tox > checking for the package system in use... debian > configure: hint: installing the following system packages is recommended > and may avoid building some of the above SPKGs from source: > configure: $ sudo apt-get update > $ sudo apt-get install libboost-dev coinor-cbc coinor-libcbc-dev > pari-gp2c libisl-dev libnauty-dev python3 libpython3-dev python3-distutils > > but all these APT packages are already installed: > > # apt-get install libboost-dev coinor-cbc coinor-libcbc-dev pari-gp2c > libisl-dev libnauty-dev python3 libpython3-dev python3-distutils > Reading package lists... Done > Building dependency tree > Reading state information... Done > Note, selecting 'libnauty2-dev' instead of 'libnauty-dev' > libboost-dev is already the newest version (1.71.0.0ubuntu2). > libisl-dev is already the newest version (0.22.1-1). > libpython3-dev is already the newest version (3.8.2-0ubuntu2). > python3 is already the newest version (3.8.2-0ubuntu2). > coinor-cbc is already the newest version (2.10.3+repack1-1build1). > coinor-libcbc-dev is already the newest version (2.10.3+repack1-1build1). > libnauty2-dev is already the newest version (2.6r10+ds-1ubuntu1). > pari-gp2c is already the newest version (0.0.11pl2-3). > python3-distutils is already the newest version (3.8.5-1~20.04.1). > 0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded. > > I don;t know what I need to get ./configure to recognize my python3. The > 'xz' package Matthias refers to is installed: > > configure:30241: checking for xz >= 4.999.0 > configure:30320: result: /usr/bin/xz > configure:30329: will use system package and not install SPKG xz > > config.log attached > In your `config.log`, the report for checking whether to install the `python3` SPGK reads: ``` ## -------------------------------------------------------- ## ## Checking whether SageMath should install SPKG python3... ## ## -------------------------------------------------------- ## configure:30455: checking whether any of sqlite libpng bzip2 xz libffi is installed as or will be installed as SPKG configure:30459: result: yes; install python3 as well configure:31094: no suitable system package found for SPKG python3 ``` So the decision for `python3` depends, here, not on whether a suitable system `python3` exists, but on the status for `sqlite`, `libpng`, `bzip2`, `xz`, `libffi`. Here are the corresponding checks in `config.log`: ``` ## ------------------------------------------------------- ## ## Checking whether SageMath should install SPKG sqlite... ## ## ------------------------------------------------------- ## configure:30003: sqlite has already been installed by SageMath ``` ``` ## ------------------------------------------------------- ## ## Checking whether SageMath should install SPKG libpng... ## ## ------------------------------------------------------- ## configure:14052: libpng has already been installed by SageMath ``` ``` ## ------------------------------------------------------ ## ## Checking whether SageMath should install SPKG bzip2... ## ## ------------------------------------------------------ ## configure:14668: bzip2 has already been installed by SageMath ``` ``` ## --------------------------------------------------- ## ## Checking whether SageMath should install SPKG xz... ## ## --------------------------------------------------- ## configure:30190: checking for lzma_raw_decoder in -llzma configure:30215: g++ -std=gnu++11 -std=gnu++11 -o conftest -g -O2 -Wl,-rpath-link,/home/brett/Projects/SAGE/sage/local/lib -L/home/brett/Projects/SAGE/sage/local/lib -Wl,-rpath,/home/brett/Projects/SAGE/sage/local/lib conftest.cpp -llzma -lm >&5 configure:30215: $? = 0 configure:30224: result: yes configure:30232: checking lzma.h usability configure:30232: g++ -std=gnu++11 -std=gnu++11 -c -g -O2 conftest.cpp >&5 configure:30232: $? = 0 configure:30232: result: yes configure:30232: checking lzma.h presence configure:30232: g++ -std=gnu++11 -E -std=gnu++11 conftest.cpp configure:30232: $? = 0 configure:30232: result: yes configure:30232: checking for lzma.h configure:30232: result: yes configure:30241: checking for xz >= 4.999.0 configure:30320: result: /usr/bin/xz configure:30329: will use system package and not install SPKG xz ``` ``` ## ------------------------------------------------------- ## ## Checking whether SageMath should install SPKG libffi... ## ## ------------------------------------------------------- ## configure:23725: checking for LIBFFI configure:23732: $PKG_CONFIG --exists --print-errors "libffi" configure:23735: $? = 0 configure:23749: $PKG_CONFIG --exists --print-errors "libffi" configure:23752: $? = 0 configure:23938: result: yes configure:23946: will use system package and not install SPKG libffi ``` The `configure` script concludes that it can use system packages for `xz` and `libffi`; and that `sqlite`, `libpng` and `bzip2` have already been installed by SageMath, so there is no point in checking for the existence of corresponding system packages. The final recommendations emitted by `configure` are slightly off: it recommends installing every package for which the decision reached during the checks was not to use the sytem package. But sometimes, what led to that decision was not the absence of a suitable system package, but other factors. Improving that is tracked at - Sage Trac ticket 29586 Improve configure's recommendations https://trac.sagemath.org/ticket/29586 If you want Sage to use your system's Python3, maybe you can uninstall the `sqlite`, `libpng` and `bzip2` SPKGs: ``` $ make sqlite-clean $ make libpng-clean $ make bzip2-clean ``` and run `configure` again. If you want to make sure to use as many system packages as possible, you might want to uninstall more things with: ``` $ make distclean ``` and run `configure` again. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. 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