From 88f97db0e48a9fe98856155d5e9eb79add8d39fb Mon Sep 17 00:00:00 2001
From: Matthias Vallentin <matthias@vallentin.net>
Date: Thu, 30 Apr 2026 12:53:12 +0200
Subject: [PATCH] Fix StatsWrapper generation output path

Generate StatsWrapper.h under PROXYGEN_GENERATED_ROOT, matching the declared custom command output. Create the stats output directory before running the generator and track both generator inputs so incremental builds regenerate the header when needed.
---
 proxygen/lib/CMakeLists.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/proxygen/lib/CMakeLists.txt b/proxygen/lib/CMakeLists.txt
index a1cc4bbfc9..f444f97253 100644
--- a/proxygen/lib/CMakeLists.txt
+++ b/proxygen/lib/CMakeLists.txt
@@ -29,12 +29,17 @@ add_custom_command(
 
 add_custom_command(
     OUTPUT ${PROXYGEN_GENERATED_ROOT}/proxygen/lib/stats/StatsWrapper.h
+    COMMAND
+        ${CMAKE_COMMAND} -E make_directory
+        ${PROXYGEN_GENERATED_ROOT}/proxygen/lib/stats
     COMMAND
         ${CMAKE_CURRENT_SOURCE_DIR}/stats/gen_StatsWrapper.sh
-        ${PROXYGEN_FBCODE_ROOT}
+        ${PROXYGEN_GENERATED_ROOT}
     DEPENDS
+        ${CMAKE_CURRENT_SOURCE_DIR}/stats/gen_StatsWrapper.sh
         ${CMAKE_CURRENT_SOURCE_DIR}/stats/BaseStats.h
     COMMENT "Generating StatsWrapper.h"
+    VERBATIM
 )
 
 add_custom_command(