From: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Date: Mon, 29 Jun 2026 13:07:08 -0400
Subject: Bug 1965053 - silence -Wcomma and -Wtautological-type-limit-compare
 warnings in the abseil build. r?mjf

---
 abseil-cpp/absl.gni | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/abseil-cpp/absl.gni b/abseil-cpp/absl.gni
index 9e1c844bf3b..8cb6e8b61d4 100644
--- a/abseil-cpp/absl.gni
+++ b/abseil-cpp/absl.gni
@@ -40,6 +40,16 @@ template("absl_source_set") {
 
       if (moz_webrtc_build) {
         configs -= [ "//chromium/build/config/compiler:prevent_unsafe_narrowing" ]
+
+        # Silence -Wcomma / -Wtautological-type-limit-compare spam from
+        # third-party abseil sources. See bug 1965053.
+        if (!defined(cflags_cc)) {
+          cflags_cc = []
+        }
+        cflags_cc += [
+          "-Wno-comma",
+          "-Wno-tautological-type-limit-compare",
+        ]
       }
 
       if (!defined(defines)) {