commit d75a21ae09d73a40aac4ca517cde6d28f757dbf7
parent 1d1c7b90de3599c3b835d1f79db1cb6f9a0eec4d
Author: Michael Froman <mfroman@mozilla.com>
Date: Wed, 8 Oct 2025 16:09:05 -0500
Bug 1993083 - Vendor libwebrtc from d27b4ef208
We already cherry-picked this when we vendored 1ab982fa34.
Upstream commit: https://webrtc.googlesource.com/src/+/d27b4ef20820c2aeef358b4a465a8b514517b9f3
Revert "Change SetLocalContent / SetRemoteContent to update header extensions"
This reverts commit 9496cc0e1b8cc50185ded19522b68d7c94c17298.
Reason for revert: Investigating downstream issue.
Bug: webrtc:383078466
Original change's description:
> Change SetLocalContent / SetRemoteContent to update header extensions
>
> The functions were skipping over updating the sender and receiver when
> the list of header extensions was changed. Now it should be better.
>
> Bug: webrtc:383078466, b/425662432, b/426394283
> Change-Id: I1b93ed1ba4bbbf6c5b13861a6e21a7a7c82a5a66
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/396640
> Reviewed-by: Per Kjellander <perkj@webrtc.org>
> Commit-Queue: Harald Alvestrand <hta@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#44951}
Bug: webrtc:383078466
Change-Id: Ie6db6d995021a8699c1c7aa91334ea0ea0e37c1f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/397820
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Christoffer Dewerin <jansson@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#45012}
Diffstat:
5 files changed, 78 insertions(+), 361 deletions(-)
diff --git a/third_party/libwebrtc/README.mozilla.last-vendor b/third_party/libwebrtc/README.mozilla.last-vendor
@@ -1,4 +1,4 @@
# ./mach python dom/media/webrtc/third_party_build/vendor-libwebrtc.py --from-local /home/mfroman/mozilla/elm/.moz-fast-forward/moz-libwebrtc --commit mozpatches libwebrtc
-libwebrtc updated from /home/mfroman/mozilla/elm/.moz-fast-forward/moz-libwebrtc commit mozpatches on 2025-10-08T21:07:52.860931+00:00.
+libwebrtc updated from /home/mfroman/mozilla/elm/.moz-fast-forward/moz-libwebrtc commit mozpatches on 2025-10-08T21:08:56.310516+00:00.
# base of lastest vendoring
-a6a242a9e2
+d27b4ef208
diff --git a/third_party/libwebrtc/moz-patch-stack/d27b4ef208.no-op-cherry-pick-msg b/third_party/libwebrtc/moz-patch-stack/d27b4ef208.no-op-cherry-pick-msg
@@ -1 +0,0 @@
-We already cherry-picked this when we vendored 1ab982fa34.
diff --git a/third_party/libwebrtc/moz-patch-stack/s0129.patch b/third_party/libwebrtc/moz-patch-stack/s0129.patch
@@ -1,282 +1,47 @@
-From: Michael Froman <mjfroman@mac.com>
-Date: Wed, 24 Sep 2025 16:16:38 -0500
-Subject: Bug 1990526 - Cherry-pick upstream libwebrtc commit d27b4ef208 r?ng
+From: Michael Froman <mfroman@mozilla.com>
+Date: Wed, 8 Oct 2025 17:49:00 +0000
+Subject: Bug 1980501 - use forward class decl rather than include
+ audio_state.h r?ng!
-Upstream commit: https://webrtc.googlesource.com/src/+/d27b4ef20820c2aeef358b4a465a8b514517b9f3
- Revert "Change SetLocalContent / SetRemoteContent to update header extensions"
+This avoids code outside of libwebrtc inadvertently including
+rtc_base/containers/flat_set.h which uses c++20 features. Once
+the rest of the Mozilla tree is compiling with c++20, we can
+remove this modification (see Bug 1768116).
- This reverts commit 9496cc0e1b8cc50185ded19522b68d7c94c17298.
-
- Reason for revert: Investigating downstream issue.
-
- Bug: webrtc:383078466
- Original change's description:
- > Change SetLocalContent / SetRemoteContent to update header extensions
- >
- > The functions were skipping over updating the sender and receiver when
- > the list of header extensions was changed. Now it should be better.
- >
- > Bug: webrtc:383078466, b/425662432, b/426394283
- > Change-Id: I1b93ed1ba4bbbf6c5b13861a6e21a7a7c82a5a66
- > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/396640
- > Reviewed-by: Per Kjellander <perkj@webrtc.org>
- > Commit-Queue: Harald Alvestrand <hta@webrtc.org>
- > Cr-Commit-Position: refs/heads/main@{#44951}
-
- Bug: webrtc:383078466
- Change-Id: Ie6db6d995021a8699c1c7aa91334ea0ea0e37c1f
- Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/397820
- Reviewed-by: Per Kjellander <perkj@webrtc.org>
- Reviewed-by: Harald Alvestrand <hta@webrtc.org>
- Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
- Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
- Owners-Override: Mirko Bonadei <mbonadei@webrtc.org>
- Reviewed-by: Christoffer Dewerin <jansson@webrtc.org>
- Cr-Commit-Position: refs/heads/main@{#45012}
+Differential Revision: https://phabricator.services.mozilla.com/D267993
+Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/9c487a574d218cc1c261b646c501db4d159754f0
---
- media/base/codec.h | 3 --
- pc/channel.cc | 15 ++----
- pc/channel_unittest.cc | 24 ++++------
- pc/congestion_control_integrationtest.cc | 58 ++----------------------
- pc/peer_connection_integrationtest.cc | 14 ++----
- 5 files changed, 20 insertions(+), 94 deletions(-)
+ audio/audio_receive_stream.h | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
-diff --git a/media/base/codec.h b/media/base/codec.h
-index e26306df20..694589dd14 100644
---- a/media/base/codec.h
-+++ b/media/base/codec.h
-@@ -192,9 +192,6 @@ struct RTC_EXPORT Codec {
- sink.Append("video/");
- }
- absl::Format(&sink, "%s/%d/%d", c.name, c.clockrate, c.channels);
-- if (c.packetization) {
-- absl::Format(&sink, ",packetization=%s", *c.packetization);
-- }
- for (auto param : c.params) {
- sink.Append(";");
- sink.Append(param.first);
-diff --git a/pc/channel.cc b/pc/channel.cc
-index 8b8d7a7ffb..1ab970f245 100644
---- a/pc/channel.cc
-+++ b/pc/channel.cc
-@@ -99,7 +99,7 @@ void MediaChannelParametersFromMediaDescription(
- desc->type() == MediaType::VIDEO);
- params->is_stream_active = is_stream_active;
- params->codecs = desc->codecs();
-- // TODO: bugs.webrtc.org/11513 - See if we really need
-+ // TODO(bugs.webrtc.org/11513): See if we really need
- // rtp_header_extensions_set() and remove it if we don't.
- if (desc->rtp_header_extensions_set()) {
- params->extensions = extensions;
-@@ -915,6 +915,7 @@ bool VoiceChannel::SetLocalContent_w(const MediaContentDescription* content,
- }
- }
- }
+diff --git a/audio/audio_receive_stream.h b/audio/audio_receive_stream.h
+index bc248120ef..fd00dfb3ed 100644
+--- a/audio/audio_receive_stream.h
++++ b/audio/audio_receive_stream.h
+@@ -31,7 +31,11 @@
+ #include "api/scoped_refptr.h"
+ #include "api/sequence_checker.h"
+ #include "api/transport/rtp/rtp_source.h"
++// This can be removed after Bug 1768116 enables
++// c++20 builds across the entire Mozilla tree.
++#if !defined(WEBRTC_MOZILLA_BUILD)
+ #include "audio/audio_state.h"
++#endif
+ #include "call/audio_receive_stream.h"
+ #include "call/audio_state.h"
+ #include "call/syncable.h"
+@@ -43,6 +47,14 @@ class PacketRouter;
+ class RtpStreamReceiverControllerInterface;
+ class RtpStreamReceiverInterface;
+
++// This can be removed after Bug 1768116 enables
++// c++20 builds across the entire Mozilla tree.
++#if defined(WEBRTC_MOZILLA_BUILD)
++namespace internal {
++class AudioState;
++}
++#endif
+
- last_recv_params_ = recv_params;
-
- if (!UpdateLocalStreams_w(content->streams(), type, error_desc)) {
-@@ -925,7 +926,7 @@ bool VoiceChannel::SetLocalContent_w(const MediaContentDescription* content,
- set_local_content_direction(content->direction());
- UpdateMediaSendRecvState_w();
-
-- // Disabled because suggesting PTs takes thread jumps.
-+ // Disabled because suggeting PTs takes thread jumps.
- // TODO: https://issues.webrtc.org/360058654 - reenable after cleanup
- // RTC_DCHECK_BLOCK_COUNT_NO_MORE_THAN(0);
-
-@@ -1041,6 +1042,7 @@ bool VideoChannel::SetLocalContent_w(const MediaContentDescription* content,
- media_send_channel()->SetExtmapAllowMixed(content->extmap_allow_mixed());
-
- VideoReceiverParameters recv_params = last_recv_params_;
-+
- MediaChannelParametersFromMediaDescription(
- content, header_extensions,
- RtpTransceiverDirectionHasRecv(content->direction()), &recv_params);
-@@ -1115,12 +1117,7 @@ bool VideoChannel::SetLocalContent_w(const MediaContentDescription* content,
-
- last_recv_params_ = recv_params;
-
-- // Also update send parameters if header extensions are changed.
-- needs_send_params_update |=
-- (last_send_params_.extensions != header_extensions &&
-- !send_params.codecs.empty());
- if (needs_send_params_update) {
-- send_params.extensions = header_extensions;
- if (!media_send_channel()->SetSenderParameters(send_params)) {
- error_desc = StringFormat(
- "Failed to set send parameters for m-section with mid='%s'.",
-@@ -1231,11 +1228,7 @@ bool VideoChannel::SetRemoteContent_w(const MediaContentDescription* content,
- media_send_channel()->SendCodecRtxTime());
- last_send_params_ = send_params;
-
-- needs_recv_params_update |=
-- (recv_params.extensions != send_params.extensions &&
-- !recv_params.codecs.empty());
- if (needs_recv_params_update) {
-- recv_params.extensions = send_params.extensions;
- if (!media_receive_channel()->SetReceiverParameters(recv_params)) {
- error_desc = StringFormat(
- "Failed to set recv parameters for m-section with mid='%s'.",
-diff --git a/pc/channel_unittest.cc b/pc/channel_unittest.cc
-index 4bb9573632..e3488a98a9 100644
---- a/pc/channel_unittest.cc
-+++ b/pc/channel_unittest.cc
-@@ -2385,22 +2385,18 @@ TEST_F(VideoChannelSingleThreadTest,
-
- EXPECT_THAT(
- media_receive_channel1_impl()->recv_codecs(),
-- ElementsAre(
-- AllOf(Field("id", &webrtc::Codec::id, 96),
-- Field("packetization", &webrtc::Codec::packetization, "foo")),
-- AllOf(Field("id", &webrtc::Codec::id, 98),
-- Field("packetization", &webrtc::Codec::packetization,
-- std::nullopt))));
-+ ElementsAre(AllOf(Field(&webrtc::Codec::id, 96),
-+ Field(&webrtc::Codec::packetization, "foo")),
-+ AllOf(Field(&webrtc::Codec::id, 98),
-+ Field(&webrtc::Codec::packetization, std::nullopt))));
- EXPECT_THAT(
- media_send_channel1_impl()->send_codecs(),
-- ElementsAre(
-- AllOf(Field("id", &webrtc::Codec::id, 96),
-- Field("packetization", &webrtc::Codec::packetization, "foo")),
-- AllOf(Field("id", &webrtc::Codec::id, 97),
-- Field("packetization", &webrtc::Codec::packetization, "bar")),
-- AllOf(Field("id", &webrtc::Codec::id, 99),
-- Field("packetization", &webrtc::Codec::packetization,
-- std::nullopt))));
-+ ElementsAre(AllOf(Field(&webrtc::Codec::id, 96),
-+ Field(&webrtc::Codec::packetization, "foo")),
-+ AllOf(Field(&webrtc::Codec::id, 97),
-+ Field(&webrtc::Codec::packetization, "bar")),
-+ AllOf(Field(&webrtc::Codec::id, 99),
-+ Field(&webrtc::Codec::packetization, std::nullopt))));
- }
-
- TEST_F(VideoChannelSingleThreadTest,
-diff --git a/pc/congestion_control_integrationtest.cc b/pc/congestion_control_integrationtest.cc
-index e5ba493d1a..d93a31924f 100644
---- a/pc/congestion_control_integrationtest.cc
-+++ b/pc/congestion_control_integrationtest.cc
-@@ -12,13 +12,9 @@
- // are correctly negotiated in the SDP offer/answer.
-
- #include <string>
--#include <vector>
-
- #include "absl/strings/str_cat.h"
--#include "api/media_types.h"
- #include "api/peer_connection_interface.h"
--#include "api/rtp_parameters.h"
--#include "api/rtp_transceiver_direction.h"
- #include "api/test/rtc_error_matchers.h"
- #include "pc/test/integration_test_helpers.h"
- #include "test/gmock.h"
-@@ -27,12 +23,11 @@
-
- namespace webrtc {
-
--using ::testing::Eq;
--using ::testing::Field;
-+using testing::Eq;
- using ::testing::Gt;
--using ::testing::HasSubstr;
-+using testing::HasSubstr;
- using ::testing::IsTrue;
--using ::testing::Not;
-+using testing::Not;
-
- class PeerConnectionCongestionControlTest
- : public PeerConnectionIntegrationBaseTest {
-@@ -82,53 +77,6 @@ TEST_F(PeerConnectionCongestionControlTest, ReceiveOfferSetsCcfbFlag) {
- EXPECT_THAT(answer_str, Not(HasSubstr("transport-cc")));
- }
-
--TEST_F(PeerConnectionCongestionControlTest, NegotiatingCcfbRemovesTsn) {
-- SetFieldTrials("WebRTC-RFC8888CongestionControlFeedback/Enabled/");
-- ASSERT_TRUE(CreatePeerConnectionWrappers());
-- ConnectFakeSignalingForSdpOnly();
-- callee()->AddVideoTrack();
-- // Add transceivers to caller in order to accomodate reception
-- caller()->pc()->AddTransceiver(MediaType::VIDEO);
-- auto parameters = caller()->pc()->GetSenders()[0]->GetParameters();
-- caller()->CreateAndSetAndSignalOffer();
-- ASSERT_THAT(WaitUntil([&] { return SignalingStateStable(); }, IsTrue()),
-- IsRtcOk());
--
-- std::vector<RtpHeaderExtensionCapability> negotiated_header_extensions =
-- caller()->pc()->GetTransceivers()[0]->GetNegotiatedHeaderExtensions();
-- EXPECT_THAT(
-- negotiated_header_extensions,
-- Not(Contains(
-- AllOf(Field("uri", &RtpHeaderExtensionCapability::uri,
-- RtpExtension::kTransportSequenceNumberUri),
-- Not(Field("direction", &RtpHeaderExtensionCapability::direction,
-- RtpTransceiverDirection::kStopped))))))
-- << " in caller negotiated header extensions";
--
-- parameters = caller()->pc()->GetSenders()[0]->GetParameters();
-- EXPECT_THAT(parameters.header_extensions,
-- Not(Contains(Field("uri", &RtpExtension::uri,
-- RtpExtension::kTransportSequenceNumberUri))))
-- << " in caller sender parameters";
-- parameters = caller()->pc()->GetReceivers()[0]->GetParameters();
-- EXPECT_THAT(parameters.header_extensions,
-- Not(Contains(Field("uri", &RtpExtension::uri,
-- RtpExtension::kTransportSequenceNumberUri))))
-- << " in caller receiver parameters";
--
-- parameters = callee()->pc()->GetSenders()[0]->GetParameters();
-- EXPECT_THAT(parameters.header_extensions,
-- Not(Contains(Field("uri", &RtpExtension::uri,
-- RtpExtension::kTransportSequenceNumberUri))))
-- << " in callee sender parameters";
--
-- parameters = callee()->pc()->GetReceivers()[0]->GetParameters();
-- EXPECT_THAT(parameters.header_extensions,
-- Not(Contains(Field("uri", &RtpExtension::uri,
-- RtpExtension::kTransportSequenceNumberUri))))
-- << " in callee receiver parameters";
--}
--
- TEST_F(PeerConnectionCongestionControlTest, CcfbGetsUsed) {
- SetFieldTrials("WebRTC-RFC8888CongestionControlFeedback/Enabled/");
- ASSERT_TRUE(CreatePeerConnectionWrappers());
-diff --git a/pc/peer_connection_integrationtest.cc b/pc/peer_connection_integrationtest.cc
-index 4d4ec552d7..3a2babda3e 100644
---- a/pc/peer_connection_integrationtest.cc
-+++ b/pc/peer_connection_integrationtest.cc
-@@ -4631,9 +4631,8 @@ TEST_F(PeerConnectionIntegrationTestUnifiedPlan,
- PeerConnectionInterface::kStable);
- }
-
--// TODO: issues.webrtc.org/425336456 - figure out correct behavior and reenable
- TEST_F(PeerConnectionIntegrationTestUnifiedPlan,
-- DISABLED_OnlyOnePairWantsCorruptionScorePlumbing) {
-+ OnlyOnePairWantsCorruptionScorePlumbing) {
- // In order for corruption score to be logged, encryption of RTP header
- // extensions must be allowed.
- CryptoOptions crypto_options;
-@@ -4657,19 +4656,12 @@ TEST_F(PeerConnectionIntegrationTestUnifiedPlan,
- ASSERT_THAT(
- WaitUntil([&] { return SignalingStateStable(); }, ::testing::IsTrue()),
- IsRtcOk());
-- std::vector<RtpHeaderExtensionCapability> negotiated_extensions =
-- caller()->pc()->GetTransceivers()[0]->GetNegotiatedHeaderExtensions();
-- ASSERT_THAT(negotiated_extensions,
-- Contains(Field("uri", &RtpHeaderExtensionCapability::uri,
-- RtpExtension::kCorruptionDetectionUri)));
- ASSERT_THAT(WaitUntil([&] { return caller()->GetCorruptionScoreCount(); },
- ::testing::Gt(0), {.timeout = kMaxWaitForStats}),
-- IsRtcOk())
-- << "Waiting for caller corruption score count > 0";
-+ IsRtcOk());
- ASSERT_THAT(WaitUntil([&] { return callee()->GetCorruptionScoreCount(); },
- ::testing::Eq(0), {.timeout = kMaxWaitForStats}),
-- IsRtcOk())
-- << "Waiting for callee corruption score count = 0";
-+ IsRtcOk());
-
- for (const auto& pair : {caller(), callee()}) {
- scoped_refptr<const RTCStatsReport> report = pair->NewGetStats();
+ namespace voe {
+ class ChannelReceiveInterface;
+ } // namespace voe
diff --git a/third_party/libwebrtc/moz-patch-stack/s0130.patch b/third_party/libwebrtc/moz-patch-stack/s0130.patch
@@ -1,47 +1,41 @@
From: Michael Froman <mfroman@mozilla.com>
Date: Wed, 8 Oct 2025 17:49:00 +0000
-Subject: Bug 1980501 - use forward class decl rather than include
- audio_state.h r?ng!
+Subject: Bug 1980501 - enable c++20 builds in libwebrtc. r?ng!
-This avoids code outside of libwebrtc inadvertently including
-rtc_base/containers/flat_set.h which uses c++20 features. Once
-the rest of the Mozilla tree is compiling with c++20, we can
-remove this modification (see Bug 1768116).
-
-Differential Revision: https://phabricator.services.mozilla.com/D267993
-Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/9c487a574d218cc1c261b646c501db4d159754f0
+Differential Revision: https://phabricator.services.mozilla.com/D267994
+Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/43de54a6e52daf0a06956ae01951ef1e29d46e82
---
- audio/audio_receive_stream.h | 12 ++++++++++++
- 1 file changed, 12 insertions(+)
+ BUILD.gn | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
-diff --git a/audio/audio_receive_stream.h b/audio/audio_receive_stream.h
-index bc248120ef..fd00dfb3ed 100644
---- a/audio/audio_receive_stream.h
-+++ b/audio/audio_receive_stream.h
-@@ -31,7 +31,11 @@
- #include "api/scoped_refptr.h"
- #include "api/sequence_checker.h"
- #include "api/transport/rtp/rtp_source.h"
-+// This can be removed after Bug 1768116 enables
-+// c++20 builds across the entire Mozilla tree.
-+#if !defined(WEBRTC_MOZILLA_BUILD)
- #include "audio/audio_state.h"
-+#endif
- #include "call/audio_receive_stream.h"
- #include "call/audio_state.h"
- #include "call/syncable.h"
-@@ -43,6 +47,14 @@ class PacketRouter;
- class RtpStreamReceiverControllerInterface;
- class RtpStreamReceiverInterface;
+diff --git a/BUILD.gn b/BUILD.gn
+index ff12ae0545..1ac89c4090 100644
+--- a/BUILD.gn
++++ b/BUILD.gn
+@@ -317,6 +317,17 @@ config("common_config") {
+ cflags_objc = []
+ defines = []
-+// This can be removed after Bug 1768116 enables
-+// c++20 builds across the entire Mozilla tree.
-+#if defined(WEBRTC_MOZILLA_BUILD)
-+namespace internal {
-+class AudioState;
-+}
-+#endif
++ # We should be able to remove this after c++20 is enabled
++ # across the Mozilla tree.
++ if (build_with_mozilla) {
++ if (is_win) {
++ cflags_cc += [ "-std:c++20" ]
++ }
++ else {
++ cflags_cc += [ "-std=gnu++20" ]
++ }
++ }
+
- namespace voe {
- class ChannelReceiveInterface;
- } // namespace voe
+ if (rtc_enable_protobuf) {
+ defines += [ "WEBRTC_ENABLE_PROTOBUF=1" ]
+ } else {
+@@ -418,7 +429,7 @@ config("common_config") {
+ # "-Wnested-externs", (C/Obj-C only)
+ ]
+ cflags_objc += [ "-Wstrict-prototypes" ]
+- cflags_cc = [
++ cflags_cc += [
+ "-Wnon-virtual-dtor",
+
+ # This is enabled for clang; enable for gcc as well.
diff --git a/third_party/libwebrtc/moz-patch-stack/s0131.patch b/third_party/libwebrtc/moz-patch-stack/s0131.patch
@@ -1,41 +0,0 @@
-From: Michael Froman <mfroman@mozilla.com>
-Date: Wed, 8 Oct 2025 17:49:00 +0000
-Subject: Bug 1980501 - enable c++20 builds in libwebrtc. r?ng!
-
-Differential Revision: https://phabricator.services.mozilla.com/D267994
-Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/43de54a6e52daf0a06956ae01951ef1e29d46e82
----
- BUILD.gn | 13 ++++++++++++-
- 1 file changed, 12 insertions(+), 1 deletion(-)
-
-diff --git a/BUILD.gn b/BUILD.gn
-index ff12ae0545..1ac89c4090 100644
---- a/BUILD.gn
-+++ b/BUILD.gn
-@@ -317,6 +317,17 @@ config("common_config") {
- cflags_objc = []
- defines = []
-
-+ # We should be able to remove this after c++20 is enabled
-+ # across the Mozilla tree.
-+ if (build_with_mozilla) {
-+ if (is_win) {
-+ cflags_cc += [ "-std:c++20" ]
-+ }
-+ else {
-+ cflags_cc += [ "-std=gnu++20" ]
-+ }
-+ }
-+
- if (rtc_enable_protobuf) {
- defines += [ "WEBRTC_ENABLE_PROTOBUF=1" ]
- } else {
-@@ -418,7 +429,7 @@ config("common_config") {
- # "-Wnested-externs", (C/Obj-C only)
- ]
- cflags_objc += [ "-Wstrict-prototypes" ]
-- cflags_cc = [
-+ cflags_cc += [
- "-Wnon-virtual-dtor",
-
- # This is enabled for clang; enable for gcc as well.
