--- src/VBox/Devices/Makefile.kmk.orig	2025-09-10 16:59:18 UTC
+++ src/VBox/Devices/Makefile.kmk
@@ -135,6 +135,7 @@ if !defined(VBOX_ONLY_EXTPACKS)
   VBoxDDU_LDFLAGS.darwin += -framework IOKit
  endif
 
+ VBoxDDU_LDFLAGS.freebsd  = $(VBOX_GCC_NO_UNDEFINED)
  VBoxDDU_LDFLAGS.linux    = $(VBOX_GCC_NO_UNDEFINED)
  $(call VBOX_SET_VER_INFO_DLL,VBoxDDU,VirtualBox VMM Devices and Drivers Utilities)
 
@@ -290,6 +291,7 @@ if !defined(VBOX_ONLY_EXTPACKS) && "$(intersects $(KBU
  	-framework SystemConfiguration \
  	-framework AVFoundation \
  	-framework Foundation
+ VBoxDD_LDFLAGS.freebsd  = $(VBOX_GCC_NO_UNDEFINED)
  VBoxDD_LDFLAGS.linux    = $(VBOX_GCC_NO_UNDEFINED)
 
  # --- Tracing bits. ---
@@ -334,7 +336,7 @@ if !defined(VBOX_ONLY_EXTPACKS) && "$(intersects $(KBU
   	Graphics/DevVGA-SVGA-cmd.cpp
  endif
  ifdef VBOX_WITH_VMSVGA3D
-  if1of ($(KBUILD_TARGET), linux win)
+  if1of ($(KBUILD_TARGET), linux win freebsd)
    # Dynamically load 3D library (opengl32, libGL).
    # This is a temporary solution. In future the 3D backend will be in a separate library.
    VBOX_WITH_VMSVGA3D_DYNAMIC_LOAD = 1
@@ -410,6 +412,7 @@ if !defined(VBOX_ONLY_EXTPACKS) && "$(intersects $(KBU
     	Graphics/DevVGA-SVGA3d-glLdr.cpp
    else
     VBoxDD_LIBS.linux   += X11 GL
+    VBoxDD_LIBS.freebsd += X11 GL
     VBoxDD_LIBS.win     += $(PATH_SDK_$(VBOX_WINPSDK)_LIB)/Opengl32.lib
    endif
    VBoxDD_LDFLAGS.darwin += -framework OpenGL
@@ -517,6 +520,8 @@ if !defined(VBOX_ONLY_EXTPACKS) && "$(intersects $(KBU
    	Video/JPEGEnc.cpp
    VBoxDD_SOURCES.darwin += \
    	Video/HostWebcam-darwin.mm
+   VBoxDD_SOURCES.freebsd += \
+   	Video/HostWebcam-v4l2.cpp
    VBoxDD_SOURCES.linux += \
    	Video/HostWebcam-v4l2.cpp
    VBoxDD_SOURCES.solaris += \
@@ -1536,6 +1541,8 @@ if defined(VBOX_WITH_VMSVGA3D) && !defined(VBOX_ONLY_E
  VBoxSVGA3D_INCS = $(VBOX_GRAPHICS_INCS)
  VBoxSVGA3D_INCS.win    := \
  	Graphics/shaderlib/libWineStub/include
+ VBoxSVGA3D_INCS.freebsd := \
+	 Graphics/shaderlib/wine/include
  VBoxSVGA3D_INCS.linux  := \
  	Graphics/shaderlib/wine/include
  VBoxSVGA3D_INCS.darwin := \