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| author | Peter Hill <zed.three@gmail.com> | 2020-05-08 11:25:57 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2020-05-21 15:46:32 (GMT) |
| commit | 3888de23daca814d66a40642d3e369a5c4747131 (patch) | |
| tree | 5cd424b87c1a866453f8e7fe27b37ad24931b4e9 /Help | |
| parent | 66c4e87282176328bc2764afd53015dffd42d7f5 (diff) | |
| download | CMake-3888de23daca814d66a40642d3e369a5c4747131.zip CMake-3888de23daca814d66a40642d3e369a5c4747131.tar.gz CMake-3888de23daca814d66a40642d3e369a5c4747131.tar.bz2 | |
Ninja: Skip Fortran preprocessing if Fortran_PREPROCESS is OFF
If `Fortran_PREPROCESS` is explicitly turned off for a source file then
we know it does not need to be preprocessed. Teach the Ninja generator
to skip preprocessing in this case. Otherwise we still must preprocess
just in case.
Fixes: #18870
Diffstat (limited to 'Help')
| -rw-r--r-- | Help/prop_sf/Fortran_PREPROCESS.rst | 5 | ||||
| -rw-r--r-- | Help/prop_tgt/Fortran_PREPROCESS.rst | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/Help/prop_sf/Fortran_PREPROCESS.rst b/Help/prop_sf/Fortran_PREPROCESS.rst index 92542d9..25ea827 100644 --- a/Help/prop_sf/Fortran_PREPROCESS.rst +++ b/Help/prop_sf/Fortran_PREPROCESS.rst @@ -8,5 +8,10 @@ should be preprocessed. If explicitly set to ``OFF`` then the file does not need to be preprocessed. If explicitly set to ``ON``, then the file does need to be preprocessed as part of the compilation step. +When using the :generator:`Ninja` generator, all source files are +first preprocessed in order to generate module dependency +information. Setting this property to ``OFF`` will make ``Ninja`` +skip this step. + Consider using the target-wide :prop_tgt:`Fortran_PREPROCESS` property if all source files in a target need to be preprocessed. diff --git a/Help/prop_tgt/Fortran_PREPROCESS.rst b/Help/prop_tgt/Fortran_PREPROCESS.rst index 069d04a..47a15c0 100644 --- a/Help/prop_tgt/Fortran_PREPROCESS.rst +++ b/Help/prop_tgt/Fortran_PREPROCESS.rst @@ -9,6 +9,11 @@ should be preprocessed. If explicitly set to ``OFF`` then the file does not need to be preprocessed. If explicitly set to ``ON``, then the file does need to be preprocessed as part of the compilation step. +When using the :generator:`Ninja` generator, all source files are +first preprocessed in order to generate module dependency +information. Setting this property to ``OFF`` will make ``Ninja`` +skip this step. + Use the source-specific :prop_sf:`Fortran_PREPROCESS` property if a single file needs to be preprocessed. If the variable :variable:`CMAKE_Fortran_PREPROCESS` is set when a target is created its |