commit b4a1f15edc3ebc2b68d2aae22bb59e2ce779cce7
Author: Christoph Moench-Tegeder <cmt@FreeBSD.org>

    try to enable gamepad interface on FreeBSD

diff --git hal/moz.build hal/moz.build
index bb486ec1e411..60e44128840f 100644
--- hal/moz.build
+++ hal/moz.build
@@ -19,7 +19,7 @@ EXPORTS.mozilla += [
     "HalWakeLockInformation.h",
 ]
 
-if CONFIG["OS_TARGET"] == "Linux":
+if CONFIG["OS_TARGET"] == "Linux" or CONFIG["OS_TARGET"] == "FreeBSD":
     EXPORTS.mozilla += [
         "linux/UdevLib.h",
     ]