Index: release/scripts/startup/bl_ui/space_view3d.py
===================================================================
--- release/scripts/startup/bl_ui/space_view3d.py	(revision 46911)
+++ release/scripts/startup/bl_ui/space_view3d.py	(working copy)
@@ -2389,6 +2389,7 @@
             col = layout.column()
             col.label(text="Shading:")
             col.prop(gs, "material_mode", text="")
+            col.prop(view, "use_back_face_culling")            
             col.prop(view, "show_textured_solid")
 
         layout.separator()
Index: source/blender/editors/space_view3d/drawobject.c
===================================================================
--- source/blender/editors/space_view3d/drawobject.c	(revision 46911)
+++ source/blender/editors/space_view3d/drawobject.c	(working copy)
@@ -48,6 +48,7 @@
 #include "DNA_world_types.h"
 #include "DNA_armature_types.h"
 #include "DNA_object_types.h"
+#include "DNA_userdef_types.h"
 
 #include "BLI_utildefines.h"
 #include "BLI_blenlib.h"
@@ -3594,6 +3595,11 @@
 	BMEditMesh *em = me->edit_btmesh;
 	int do_alpha_after = FALSE, drawlinked = 0, retval = 0, glsl, check_alpha, i;
 
+	if (G.bfcEnabled)
+		glEnable(GL_CULL_FACE);
+	else
+		glDisable(GL_CULL_FACE);
+
 	/* If we are drawing shadows and any of the materials don't cast a shadow,
 	 * then don't draw the object */
 	if (v3d->flag2 & V3D_RENDER_SHADOW) {
@@ -3670,6 +3676,11 @@
 		}
 	}
 	
+	if (G.bfcEnabled)
+		glEnable(GL_CULL_FACE);
+	else
+		glDisable(GL_CULL_FACE);
+
 	return retval;
 }
 
@@ -6438,6 +6449,11 @@
 	short dt, dtx, zbufoff = 0;
 	const short is_obact = (ob == OBACT);
 
+	if (v3d->flag2 &V3D_USE_BFC)
+		G.bfcEnabled = 1;
+	else
+		G.bfcEnabled = 0;
+
 	/* only once set now, will be removed too, should become a global standard */
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
@@ -7202,6 +7218,7 @@
 	}
 
 	free_old_images();
+	glDisable(GL_CULL_FACE);
 }
 
 /* ***************** BACKBUF SEL (BBS) ********* */
Index: source/blender/blenkernel/BKE_global.h
===================================================================
--- source/blender/blenkernel/BKE_global.h	(revision 46911)
+++ source/blender/blenkernel/BKE_global.h	(working copy)
@@ -77,6 +77,8 @@
 	/* Frank's variables */
 	int save_over;
 
+	int bfcEnabled;
+
 	/* Rob's variables (keep here for WM recode) */
 	int have_quicktime;
 	int ui_international;
Index: source/blender/makesdna/DNA_view3d_types.h
===================================================================
--- source/blender/makesdna/DNA_view3d_types.h	(revision 46911)
+++ source/blender/makesdna/DNA_view3d_types.h	(working copy)
@@ -260,6 +260,7 @@
 /* View3d->flag2 (short) */
 #define V3D_RENDER_OVERRIDE		4
 #define V3D_SOLID_TEX			8
+#define V3D_USE_BFC				1
 #define V3D_DISPGP				16
 #define V3D_LOCK_CAMERA			32
 #define V3D_RENDER_SHADOW		64 /* This is a runtime only flag that's used to tell draw_mesh_object() that we're doing a shadow pass instead of a regular draw */
Index: source/blender/gpu/intern/gpu_draw.c
===================================================================
--- source/blender/gpu/intern/gpu_draw.c	(revision 46911)
+++ source/blender/gpu/intern/gpu_draw.c	(working copy)
@@ -1247,6 +1247,16 @@
 				alphablend= mat->game.alpha_blend;
 
 			if (GMS.is_alpha_pass) glDepthMask(1);
+
+			if (G.bfcEnabled) {
+				if(mat->game.flag)
+					glEnable(GL_CULL_FACE);
+				else
+					glDisable(GL_CULL_FACE);
+			}
+			else {
+				glDisable(GL_CULL_FACE);
+			}
 		}
 		else {
 			/* or do fixed function opengl material */
Index: source/blender/makesrna/intern/rna_space.c
===================================================================
--- source/blender/makesrna/intern/rna_space.c	(revision 46911)
+++ source/blender/makesrna/intern/rna_space.c	(working copy)
@@ -1567,6 +1567,11 @@
 	RNA_def_property_ui_text(prop, "Textured Solid", "Display face-assigned textures in solid view");
 	RNA_def_property_update(prop, NC_SPACE | ND_SPACE_VIEW3D, NULL);
 
+	prop = RNA_def_property(srna, "use_back_face_culling", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "flag2", V3D_USE_BFC);
+	RNA_def_property_ui_text(prop, "BackFace Culling", "Viewport Back Face Culling");
+	RNA_def_property_update(prop, NC_SPACE | ND_SPACE_VIEW3D, NULL);
+
 	prop = RNA_def_property(srna, "lock_camera", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "flag2", V3D_LOCK_CAMERA);
 	RNA_def_property_ui_text(prop, "Lock Camera to View", "Enable view navigation within the camera view");