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Introduction: recommended practice
Recommended practice when using an out-of-source build is to have two different shell sessions. In one shell, which we will call the source shell, you will do things related to manipulation of the source code: e.g. editing code and committing to the repository. In the second shell, which we will call the build shell, you'll be doing things related to building and running the code.
Setting up the source shell
In the source shell session, cd
to the directory in which you have
the CosmoSIS source code repository cloned. Unless you’ve done
something unusual, this directory will be named cosmosis
, and will
contain a hidden subdirectory called .git
.
We will call this directory the CosmoSIS source directory.
Setting up the build shell
In the build shell session, cd
to a directory in which you want the
files generated by the build to appear.
Step 1
Create your build directory. For example, create a new subdirectory under some scratch space, or under your home directory. Please do not put this directory anywhere in the source tree you are looking at in the source shell.
Step 2
source
the script setup_for_dev.sh
in the config
subdirectory
of the CosmoSIS source directory. For example, if your CosmoSIS
source directory is $HOME/cosmosis
, you should execute:
#!bash $> source $HOME/cosmosis/config/setup_for_dev.sh $HOME/cosmosis
Step 3
Next, create the scripts used to control the build. This is done with the following command:
#!bash $> make -f ${COSMOSIS_DIR}/Makefile build
build
, as well as some other directories
and files. You will be using the build
command as if it were make
from now on.
Step 4
To build the CosmoSIS libraries and modules, use the following command:
#!bash
$> ./build -j
-j
to do a serial build. The parallel build is faster,
but if you are getting compilation, linking, or test errors, the outpt
to the screen can become garbled. In that case, the serial build will
produce ungarbled messages.
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