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| author | Evan Martin <evan.martin@gmail.com> | 2024-01-08 11:22:09 -0800 |
|---|---|---|
| committer | Evan Martin <evan.martin@gmail.com> | 2024-01-08 11:22:09 -0800 |
| commit | 5f01dd43680b3992ba96b0059ab17c32d271b4b3 (patch) | |
| tree | 8708dad2e7a8c45be4d88e30a703504b88592b3c | |
| parent | 9f8d939d0d653de65b860c9382840ca2db350f8e (diff) | |
| download | n2-5f01dd43680b3992ba96b0059ab17c32d271b4b3.tar.gz | |
mention empty depfiles in design notes
| -rw-r--r-- | doc/design_notes.md | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/design_notes.md b/doc/design_notes.md index 600aa90..afe5dad 100644 --- a/doc/design_notes.md +++ b/doc/design_notes.md @@ -89,6 +89,11 @@ But if any of those files are missing we call the step dirty without bothering to compute a hash. In this manner we never compute a hash involving any missing files. +Further, CMake generates Ninja files that claim a build step generates a +[depfile](https://ninja-build.org/manual.html#_depfile) when it doesn't. Ninja +treats this as an empty depfile, not an error. (See +[#80](https://github.com/evmar/n2/issues/80).) + ## Parsing Parsing .ninja files is part of the critical path for n2, because it must be |