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Diffstat (limited to 'Help/envvar/CTEST_PARALLEL_LEVEL.rst')
| -rw-r--r-- | Help/envvar/CTEST_PARALLEL_LEVEL.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Help/envvar/CTEST_PARALLEL_LEVEL.rst b/Help/envvar/CTEST_PARALLEL_LEVEL.rst index 126bdb3..0ef01d5 100644 --- a/Help/envvar/CTEST_PARALLEL_LEVEL.rst +++ b/Help/envvar/CTEST_PARALLEL_LEVEL.rst @@ -8,4 +8,15 @@ For example, if ``CTEST_PARALLEL_LEVEL`` is set to 8, CTest will run up to 8 tests concurrently as if ``ctest`` were invoked with the :option:`--parallel 8 <ctest --parallel>` option. +.. versionchanged:: 3.29 + + The value may be empty, or ``0``, to let ctest use a default level of + parallelism, or unbounded parallelism, respectively, as documented by + the :option:`ctest --parallel` option. + + On Windows, environment variables cannot be set to an empty string. + CTest will interpret a whitespace-only string as empty. + + In CMake 3.28 and earlier, an empty or ``0`` value was equivalent to ``1``. + See :manual:`ctest(1)` for more information on parallel test execution. |