[libcxx-commits] [libcxx] f00e0f2 - [libc++][doc] Add warning about limitation of --fresh in boostrapping build (#65265)

[via libcxx-commits]

Author: Will Hawkins
Date: 2023-09-07T13:22:07-04:00
New Revision: f00e0f2bdc53d3ada9924c41f5fcb6e12f364e35

URL: https://github.com/llvm/llvm-project/commit/f00e0f2bdc53d3ada9924c41f5fcb6e12f364e35
DIFF: https://github.com/llvm/llvm-project/commit/f00e0f2bdc53d3ada9924c41f5fcb6e12f364e35.diff

LOG: [libc++][doc] Add warning about limitation of --fresh in boostrapping build (#65265)

Add a warning to the `Building Libcxx` documentation about the
limitations of the utility of `--fresh` at the top level.

Signed-off-by: Will Hawkins <hawkinsw at obs.cr>

Added: 
    

Modified: 
    libcxx/docs/BuildingLibcxx.rst

Removed: 
    


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diff  --git a/libcxx/docs/BuildingLibcxx.rst b/libcxx/docs/BuildingLibcxx.rst
index 0c025854910a8fb..e919e1e6f32bfc3 100644
--- a/libcxx/docs/BuildingLibcxx.rst
+++ b/libcxx/docs/BuildingLibcxx.rst
@@ -78,6 +78,10 @@ CMake invocation at ``<monorepo>/llvm``:
   This type of build is also commonly called a "Runtimes build", but we would like to move
   away from that terminology, which is too confusing.
 
+.. warning::
+  Adding the `--fresh` flag to the top-level cmake invocation in a bootstrapping build *will not*
+  freshen the cmake cache of any of the enabled runtimes.
+
 Support for Windows
 ===================