Hello,
Sage (from sage-7.0.tar.gz) was built from source with the following
commands:
$ export MAKE="make -j16 -l19"
$ export SAGE_FAT_BINARY="yes"
$ make
$ ./sage -i pyopenssl
$ ./sage -i beautifulsoup
$ ./sage --bdist
The resulting dist/sage-7.0-x86_64-Linux.tar.gz was copied elsewhere.
The .tar.gz was unpacked in this different location. Running './sage' from
this location gave the following error:
ERROR: The Sage installation tree has moved
from /home/kapil/sage-7.0
to /home/kapil/test/sage-7.0-x86_64-Linux
This is not supported, and Sage will not work. To install Sage from a
binary package:
1. Open the .tar.bz2 archive (or .dmg on OSX)
2. Move the SageMath folder/app to where you want it to be. You can
also rename the directory now.
3. Start sage for the first time. This will then automatically patch
paths in binaries.
After starting Sage for the first time you cannot change the
installation any more. To install Sage elsewhere, start over from the
binary package. Or recompile Sage from scratch in the new location
("make distclean && make)
Further investigation revealed that as the message above says sage is no
longer relocatable.
So on to the questions:
1. Why does "sage --bdist" still exist if if does not work? At the very
least it should give a message saying something like "Unpack in *exactly*
the same location where you built Sage" *and* sage -bdist should not name
the top-level directory incorrectly (as it currently does).
2. The installation instructions (README.txt e.g.) should probably
indicate the above and stop suggesting "sage -bdist" perhaps?
3. What is the solution available for people who want to install Sage in
a container of some kind (e.g. chroot) where all the build-tools are not
available or there is not enough space to build sage and the existing
binaries do not work (incompatible libc for example)?
Thanks in advance for suggestions,
Kapil.
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