From 039ac8c4c16e282446bc29040612786d808645bf Mon Sep 17 00:00:00 2001
From: Cavan O'Horo <116211548+cav2094@users.noreply.github.com>
Date: Sat, 21 Feb 2026 22:25:00 -0500
Subject: [PATCH] Fix double-promotion warning in gz_msgs on macOS (#26548)

Protobuf-generated code in gz_msgs triggers -Wdouble-promotion warnings
from the Abseil library. Since this is external code we cannot modify,
disable the warning for this specific target.

Fixes #26533
---
 src/modules/simulation/gz_msgs/CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/modules/simulation/gz_msgs/CMakeLists.txt b/src/modules/simulation/gz_msgs/CMakeLists.txt
index 2501811e5e..568bd7874a 100644
--- a/src/modules/simulation/gz_msgs/CMakeLists.txt
+++ b/src/modules/simulation/gz_msgs/CMakeLists.txt
@@ -18,6 +18,9 @@ if (Protobuf_FOUND)
         ${PROTO_HDRS}
     )
 
+    # Disable double-promotion warning for protobuf-generated code
+    target_compile_options(px4_gz_msgs PRIVATE -Wno-double-promotion)
+
     target_include_directories(px4_gz_msgs
         PUBLIC
             ${CMAKE_CURRENT_BINARY_DIR}