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Diffstat (limited to 'build/docs/environment-variables.rst')
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diff --git a/build/docs/environment-variables.rst b/build/docs/environment-variables.rst new file mode 100644 index 0000000000..c463391596 --- /dev/null +++ b/build/docs/environment-variables.rst @@ -0,0 +1,31 @@ +.. _environment_variables: + +================================================ +Environment Variables Impacting the Build System +================================================ + +Various environment variables have an impact on the behavior of the +build system. This document attempts to document them. + +AUTOCLOBBER + If defines, the build system will automatically clobber as needed. + The default behavior is to print a message and error out when a + clobber is needed. + + This variable is typically defined in a :ref:`mozconfig <mozconfig>` + file via ``mk_add_options``. + +REBUILD_CHECK + If defined, the build system will print information about why + certain files were rebuilt. + + This feature is disabled by default because it makes the build slower. + +MACH_NO_TERMINAL_FOOTER + If defined, the terminal footer displayed when building with mach in + a TTY is disabled. + +MACH_NO_WRITE_TIMES + If defined, mach commands will not prefix output lines with the + elapsed time since program start. This option is equivalent to + passing ``--log-no-times`` to mach. |