diff '--color=auto' -Naur a/third_party/libwebrtc/modules/portal/pipewire_utils.cc b/third_party/libwebrtc/modules/portal/pipewire_utils.cc
--- a/third_party/libwebrtc/modules/portal/pipewire_utils.cc	2025-05-26 17:15:04.490924345 +0300
+++ b/third_party/libwebrtc/modules/portal/pipewire_utils.cc	2025-05-27 13:08:54.776412637 +0300
@@ -8,6 +8,8 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include <math.h>
+
 #include "modules/portal/pipewire_utils.h"
 
 #include <pipewire/pipewire.h>