mozconfig files are used to configure how a build works.
mozconfig files are actually shell scripts. They are executed in a special context with specific variables and functions exposed to them.
The following special functions are available to a mozconfig script.
This function is used to declare extra options/arguments to pass into configure.
ac_add_options --disable-tests ac_add_options --enable-optimize
This function is used to inject statements into client.mk for execution. It is typically used to define variables, notably the object directory.
For historical reasons, the method for communicating certain well-defined variables is via mk_add_options(). In this section, we document what those special variables are.
This variable is used to define the
object directory for the current build.
Multiple mozconfig files can exist to provide different configuration options for different tasks. The rules for finding the active mozconfig are defined in the :py