https://github.com/xbjfk updated https://github.com/llvm/llvm-project/pull/66593
>From 0d50e2892bd055053e0e61615911928371106e17 Mon Sep 17 00:00:00 2001
From: Reagan Bohan <xbjfk.git...@gmail.com>
Date: Sun, 17 Sep 2023 21:19:33 +1200
Subject: [PATCH] Document runtime config directory options
---
clang/docs/UsersManual.rst | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/clang/docs/UsersManual.rst b/clang/docs/UsersManual.rst
index 7391e4cf3a9aeb..9d8af41ac0d0d0 100644
--- a/clang/docs/UsersManual.rst
+++ b/clang/docs/UsersManual.rst
@@ -944,10 +944,13 @@ 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
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