[llvm] [gn] port cc048e80b670 more (PR #209156)

[Nico Weber via llvm-commits]

https://github.com/nico created https://github.com/llvm/llvm-project/pull/209156

00cd65638a7cf attempted this, but it was incomplete.

>From 8af0f870dbd002763dda203f8ad86200d5323927 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis at chromium.org>
Date: Mon, 13 Jul 2026 08:01:12 -0400
Subject: [PATCH] [gn] port cc048e80b670 more

00cd65638a7cf attempted this, but it was incomplete.
---
 .../utils/gn/secondary/clang-tools-extra/clang-doc/BUILD.gn | 1 +
 .../secondary/clang-tools-extra/clang-doc/markdown/BUILD.gn | 6 ++++++
 2 files changed, 7 insertions(+)
 create mode 100644 llvm/utils/gn/secondary/clang-tools-extra/clang-doc/markdown/BUILD.gn

diff --git a/llvm/utils/gn/secondary/clang-tools-extra/clang-doc/BUILD.gn b/llvm/utils/gn/secondary/clang-tools-extra/clang-doc/BUILD.gn
index 2d619fb48ea04..3983efa258df1 100644
--- a/llvm/utils/gn/secondary/clang-tools-extra/clang-doc/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang-tools-extra/clang-doc/BUILD.gn
@@ -2,6 +2,7 @@ static_library("clang-doc") {
   output_name = "clangDoc"
   configs += [ "//llvm/utils/gn/build:clang_code" ]
   deps = [
+    "markdown",
     "support",
     "//clang/lib/AST",
     "//clang/lib/ASTMatchers",
diff --git a/llvm/utils/gn/secondary/clang-tools-extra/clang-doc/markdown/BUILD.gn b/llvm/utils/gn/secondary/clang-tools-extra/clang-doc/markdown/BUILD.gn
new file mode 100644
index 0000000000000..ff8ca510eee31
--- /dev/null
+++ b/llvm/utils/gn/secondary/clang-tools-extra/clang-doc/markdown/BUILD.gn
@@ -0,0 +1,6 @@
+static_library("markdown") {
+  output_name = "clangDocMarkdown"
+  configs += [ "//llvm/utils/gn/build:clang_code" ]
+  deps = [ "//llvm/lib/Support" ]
+  sources = [ "Markdown.cpp" ]
+}