[clang] 15405b3 - [Clang] [Docs] Document runtime config directory options (#66593)

[via cfe-commits]

Author: Reagan
Date: 2024-08-28T12:54:28+02:00
New Revision: 15405b32b1cdbefab9ce1b1f301a51ae25404037

URL: https://github.com/llvm/llvm-project/commit/15405b32b1cdbefab9ce1b1f301a51ae25404037
DIFF: https://github.com/llvm/llvm-project/commit/15405b32b1cdbefab9ce1b1f301a51ae25404037.diff

LOG: [Clang] [Docs] Document runtime config directory options (#66593)

In the clang user manual the build options `CLANG_CONFIG_FILE_USER_DIR`
and `CLANG_CONFIG_FILE_SYSTEM_DIR` are documented, but the run time
overrides `--config-user-dir` and `--config-system-dir` are not.

I have updated the manual to add these run time arguments.

Added: 
    

Modified: 
    clang/docs/UsersManual.rst

Removed: 
    


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diff  --git a/clang/docs/UsersManual.rst b/clang/docs/UsersManual.rst
index 069ecba875cd59..f27fa4ace917ea 100644
--- a/clang/docs/UsersManual.rst
+++ b/clang/docs/UsersManual.rst
@@ -950,10 +950,13 @@ treated as a file name and is searched for sequentially in the directories:
     - system directory,
     - the directory where Clang executable resides.
 
-Both user and system directories for configuration files are specified during
-clang build using CMake parameters, ``CLANG_CONFIG_FILE_USER_DIR`` and
-``CLANG_CONFIG_FILE_SYSTEM_DIR`` respectively. The first file found is used.
-It is an error if the required file cannot be found.
+Both user and system directories for configuration files can be specified
+either during build or during runtime. At build time, use
+``CLANG_CONFIG_FILE_USER_DIR`` and ``CLANG_CONFIG_FILE_SYSTEM_DIR``. At run
+time use the ``--config-user-dir=`` and ``--config-system-dir=`` command line
+options. Specifying config directories at runtime overrides the config
+directories set at build time The first file found is used. It is an error if
+the required file cannot be found.
 
 The default configuration files are searched for in the same directories
 following the rules described in the next paragraphs. Loading default