From 92f40da697627609c8128fc0fe8f810d246b1054 Mon Sep 17 00:00:00 2001
From: erikdesjardins <7673145+erikdesjardins@users.noreply.github.com>
Date: Mon, 10 Jun 2024 20:41:47 +0900
Subject: [PATCH] Mention `COMPILETEST_REQUIRE_ALL_LLVM_COMPONENTS` in
 `needs-llvm-components` documentation (#1990)

---
 src/tests/headers.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tests/headers.md b/src/tests/headers.md
index a59ffe6cc..c4a02263f 100644
--- a/src/tests/headers.md
+++ b/src/tests/headers.md
@@ -172,7 +172,7 @@ The following header commands will check LLVM support:
 * `ignore-llvm-version: 9.0` — ignores a specific LLVM version
 * `ignore-llvm-version: 7.0 - 9.9.9` — ignores LLVM versions in a range (inclusive)
 * `needs-llvm-components: powerpc` — ignores if the specific LLVM component was not built.
-  Note: The test will fail on CI if the component does not exist.
+  Note: The test will fail on CI (when `COMPILETEST_REQUIRE_ALL_LLVM_COMPONENTS` is set) if the component does not exist.
 * `needs-matching-clang` — ignores if the version of clang does not match the
   LLVM version of rustc.
   These tests are always ignored unless a special environment variable,