Bug 1747852 - Move MOZ_WEBRTC_HAVE_ETHTOOL_SPEED_HI to python configure. r=firefox-build-system-reviewers,mhentges

Differential Revision: https://phabricator.services.mozilla.com/D134766

old-configure.in

@@ -1125,12 +1125,6 @@ fi
 AC_DEFINE_UNQUOTED(MOZ_DISTRIBUTION_ID,"$MOZ_DISTRIBUTION_ID")
 AC_SUBST(MOZ_DISTRIBUTION_ID)
 
-AC_TRY_COMPILE([#include <linux/ethtool.h>],
-               [ struct ethtool_cmd cmd; cmd.speed_hi = 0; ],
-               MOZ_WEBRTC_HAVE_ETHTOOL_SPEED_HI=1)
-
-AC_SUBST(MOZ_WEBRTC_HAVE_ETHTOOL_SPEED_HI)
-
 dnl ========================================================
 dnl Gamepad support
 dnl ========================================================

toolkit/moz.configure

@@ -2995,3 +2995,16 @@ with only_when(target_is_linux & compile_environment):
     add_old_configure_assignment("MOZ_LINKER", True, when="MOZ_LINKER")
 
     moz_linker = depends(when="MOZ_LINKER")(lambda: True)
+
+
+# 32-bits ethtool_cmd.speed
+# ==============================================================
+with only_when(target_is_linux & compile_environment):
+    set_config(
+        "MOZ_WEBRTC_HAVE_ETHTOOL_SPEED_HI",
+        c_compiler.try_compile(
+            includes=["linux/ethtool.h"],
+            body="struct ethtool_cmd cmd; cmd.speed_hi = 0;",
+            check_msg="for 32-bits ethtool_cmd.speed",
+        ),
+    )