From 6bd084a3e27da722f54d26dd6cd3d599d4cfbfdb Mon Sep 17 00:00:00 2001
From: Bob Wilson <bob.wilson@apple.com>
Date: Tue, 30 Sep 2025 16:26:48 -0700
Subject: [PATCH] =?UTF-8?q?=F0=9F=8D=92=20[clang]=20Add=20features.json=20?=
 =?UTF-8?q?entry=20for=20"print-headers-direct-per-file"?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Swift Build needs to know when "-header-include-filtering=direct-per-file"
is supported by Clang. We already added a fake feature flag in Swift Build
based on a check of the Apple Clang version number. Adding a real entry
in features.json will let us replace that hack.

rdar://161691058

(cherry picked from commit ca4827f8d403d3dfad86bacd5170ee962437d9a9)
---
 clang/tools/driver/features.json | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/clang/tools/driver/features.json b/clang/tools/driver/features.json
index 4e3f20c6627ea..4494a527095e0 100644
--- a/clang/tools/driver/features.json
+++ b/clang/tools/driver/features.json
@@ -40,6 +40,9 @@
     },
     {
       "name": "extract-api-supports-cpp"
+    },
+    {
+      "name": "print-headers-direct-per-file"
     }
   ]
 }