Where is the quick way to rebuild O2?

Dear all,

I am missing a quick way rebuild O2, without going though aliBuild. In the past, after making changes on O2 source code, I used to go to the build directory and type make install:

  $ cd ~/alice/sw/BUILD/O2-latest/O2
  $ make install -j4

However, the same procedure does not work within alidock + the current dev branch of O2, as makefile cannot be found on the BUILD directory anymore:

$ cd /home/alidock/.sw/BUILD/O2-latest/O2
[alidock] ~/.sw/BUILD/O2-latest/O2 $> make install
make: *** No rule to make target `install'.  Stop.

The instructions on https://alice-doc.github.io/alice-analysis-tutorial/building/build.html#rebuild-existing-installations do not work for O2 anymore.

I would like to avoid aliBuild having to look for changes on each package before compiling a single file that has been changed on O2. Any tip here?


Hi, you are right. O2 installation uses ninja in your alidock environment. If you want to rebuild, you can do:

alienv enter O2/latest  # need to be in the environment for that
cd ~/.sw/BUILD/O2-latest/O2
ninja install -j4

Let me know if this works for you (it does for me, for the record). I’ll update the instructions accordingly.


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Thanks, Dario.

It is working. The following combination as well:

$ alidock
Starting a shell into the container
[alidock] ~ $> cd .sw/BUILD/O2-latest/O2/
[alidock] ~/.sw/BUILD/O2-latest/O2 $> alienv setenv GCC-Toolchain/latest -c ninja install


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