Prevent stripping of C interfaces in framework

webrtc/sdk/BUILD.gn

Index: webrtc/sdk/BUILD.gn
diff --git a/webrtc/sdk/BUILD.gn b/webrtc/sdk/BUILD.gn
index 755390c38c2e0a935513c3096dbe9ebd5a0a9d65..a1bfbdaee31f8f684e3c687205189ef8bba36011 100644
--- a/webrtc/sdk/BUILD.gn
+++ b/webrtc/sdk/BUILD.gn
@@ -252,6 +252,7 @@ if (is_ios || (is_mac && mac_deployment_target == "10.7")) {
     "objc/Framework/Headers/WebRTC/UIDevice+RTCDevice.h",
     "objc/Framework/Headers/WebRTC/WebRTC.h",
   ]
+
   if (is_mac) {
     mac_framework_bundle("rtc_sdk_framework_objc") {
       info_plist = "objc/Framework/Info.plist"
@@ -279,6 +280,8 @@ if (is_ios || (is_mac && mac_deployment_target == "10.7")) {
         "VideoToolbox.framework",
       ]
 
+      ldflags = [ "-all_load" ]
+
       configs += [
         "..:common_objc",
         "//build/config/compiler:enable_arc",