diff --git a/source/blender/blenkernel/intern/cdderivedmesh.c b/source/blender/blenkernel/intern/cdderivedmesh.c
index 0b29b29e60f..ee9d4963973 100644
--- a/source/blender/blenkernel/intern/cdderivedmesh.c
+++ b/source/blender/blenkernel/intern/cdderivedmesh.c
@@ -580,8 +580,9 @@ static void cdDM_drawFacesColored(DerivedMesh *dm, int useTwoSided, unsigned cha
 	/* there's a conflict here... twosided colors versus culling...? */
 	/* defined by history, only texture faces have culling option */
 	/* we need that as mesh option builtin, next to double sided lighting */
-	if(col1 && col2)
+	if(col2) {
 		glEnable(GL_CULL_FACE);
+	}
 
 	cdDM_update_normals_from_pbvh(dm);
 
diff --git a/source/blender/blenkernel/intern/subsurf_ccg.c b/source/blender/blenkernel/intern/subsurf_ccg.c
index b9bf10bdf39..33094313acd 100644
--- a/source/blender/blenkernel/intern/subsurf_ccg.c
+++ b/source/blender/blenkernel/intern/subsurf_ccg.c
@@ -1541,8 +1541,10 @@ static void ccgDM_drawFacesColored(DerivedMesh *dm, int UNUSED(useTwoSided), uns
 	}
 
 	glShadeModel(GL_SMOOTH);
-	if(col1 && col2)
+
+	if(col2) {
 		glEnable(GL_CULL_FACE);
+	}
 
 	glBegin(GL_QUADS);
 	for (; !ccgFaceIterator_isStopped(fi); ccgFaceIterator_next(fi)) {
diff --git a/source/blender/blenkernel/intern/text.c b/source/blender/blenkernel/intern/text.c
index db07fae9245..ba5d4282416 100644
--- a/source/blender/blenkernel/intern/text.c
+++ b/source/blender/blenkernel/intern/text.c
@@ -2068,6 +2068,7 @@ void txt_do_redo(Text *text)
 			linep= linep+(text->undo_buf[text->undo_pos]<<8); text->undo_pos++;
 			linep= linep+(text->undo_buf[text->undo_pos]<<16); text->undo_pos++;
 			linep= linep+(text->undo_buf[text->undo_pos]<<24); text->undo_pos++;
+			(void)linep;
 
 			break;
 		case UNDO_INDENT:
diff --git a/source/blender/editors/animation/anim_channels_defines.c b/source/blender/editors/animation/anim_channels_defines.c
index 3374b3c6f95..51fde09b074 100644
--- a/source/blender/editors/animation/anim_channels_defines.c
+++ b/source/blender/editors/animation/anim_channels_defines.c
@@ -3275,6 +3275,7 @@ void ANIM_channel_draw_widgets (bAnimContext *ac, bAnimListElem *ale, uiBlock *b
 			draw_setting_widget(ac, ale, acf, block, offset, ymid, ACHANNEL_SETTING_SOLO);
 			offset += ICON_WIDTH; 
 		}
+		(void)offset;
 	}
 	
 	/* step 4) draw text... */
diff --git a/source/blender/editors/animation/anim_channels_edit.c b/source/blender/editors/animation/anim_channels_edit.c
index 0845014c99e..4edcca46935 100644
--- a/source/blender/editors/animation/anim_channels_edit.c
+++ b/source/blender/editors/animation/anim_channels_edit.c
@@ -169,9 +169,9 @@ void ANIM_set_active_channel (bAnimContext *ac, void *data, short datatype, int
 			case ANIMTYPE_DSLAT:
 			{
 				/* need to verify that this data is valid for now */
-				// XXX: ale may be null!
-				if (ale->adt)
+				if (ale && ale->adt) {
 					ale->adt->flag |= ADT_UI_ACTIVE;
+				}
 			}
 				break;
 		}
@@ -1001,7 +1001,7 @@ static void rearrange_action_channels (bAnimContext *ac, bAction *act, short mod
 		
 		for (agrp= act->groups.first; agrp; agrp= agrp->next) {
 			/* only consider F-Curves if they're visible (group expanded) */
-			if (EXPANDED_AGRP(agrp)) {
+			if (EXPANDED_AGRP(ac, agrp)) {
 				rearrange_animchannel_islands(&agrp->channels, rearrange_func, mode, ANIMTYPE_FCURVE);
 			}
 		}
diff --git a/source/blender/editors/animation/anim_filter.c b/source/blender/editors/animation/anim_filter.c
index cca4fdbe331..71893cee89a 100644
--- a/source/blender/editors/animation/anim_filter.c
+++ b/source/blender/editors/animation/anim_filter.c
@@ -1017,7 +1017,7 @@ static int animdata_filter_action (bAnimContext *ac, ListBase *anim_data, bDopeS
 		 * but the group isn't expanded...
 		 */
 		if ( (filter_mode & (ANIMFILTER_SEL|ANIMFILTER_UNSEL)) &&	/* care about selection status */
-			 (EXPANDED_AGRP(agrp)==0) )								/* group isn't expanded */
+			 (EXPANDED_AGRP(ac, agrp)==0) )								/* group isn't expanded */
 		{
 			/* if the group itself isn't selected appropriately, we shouldn't consider it's children either */
 			if (ANIMCHANNEL_SELOK(SEL_AGRP(agrp)) == 0)
@@ -1076,7 +1076,7 @@ static int animdata_filter_action (bAnimContext *ac, ListBase *anim_data, bDopeS
 				 *	- group is expanded
 				 *	- we just need the F-Curves present
 				 */
-				if ( (!(filter_mode & ANIMFILTER_VISIBLE) || EXPANDED_AGRP(agrp)) || (filter_mode & ANIMFILTER_CURVESONLY) ) 
+				if ( (!(filter_mode & ANIMFILTER_VISIBLE) || EXPANDED_AGRP(ac, agrp)) || (filter_mode & ANIMFILTER_CURVESONLY) )
 				{
 					/* for the Graph Editor, curves may be set to not be visible in the view to lessen clutter,
 					 * but to do this, we need to check that the group doesn't have it's not-visible flag set preventing 
diff --git a/source/blender/editors/curve/editcurve.c b/source/blender/editors/curve/editcurve.c
index 1ab7acef861..9bae4ea6569 100644
--- a/source/blender/editors/curve/editcurve.c
+++ b/source/blender/editors/curve/editcurve.c
@@ -951,7 +951,7 @@ static void calc_shapeKeys(Object *obedit)
 										++i;
 									}
 
-									fp+= 3; curofp+= 3;	/* alphas */
+									fp+= 3;	/* alphas */
 								} else {
 									for (j= 0; j < 3; ++j, ++i) {
 										VECCOPY(fp, bezt->vec[j]);
@@ -5662,7 +5662,7 @@ static int delete_exec(bContext *C, wmOperator *op)
 	Curve *cu= obedit->data;
 	EditNurb *editnurb= cu->editnurb;
 	ListBase *nubase= &editnurb->nurbs;
-	Nurb *nu, *next, *nu1;
+	Nurb *nu, *nu1;
 	BezTriple *bezt, *bezt1, *bezt2;
 	BPoint *bp, *bp1, *bp2;
 	int a, cut= 0, type= RNA_enum_get(op->ptr, "type");
@@ -5687,6 +5687,7 @@ static int delete_exec(bContext *C, wmOperator *op)
 
 	if(type==0) {
 		/* first loop, can we remove entire pieces? */
+		Nurb *next;
 		nu= nubase->first;
 		while(nu) {
 			next= nu->next;
@@ -5815,7 +5816,6 @@ static int delete_exec(bContext *C, wmOperator *op)
 		nu1= NULL;
 		nuindex= 0;
 		for(nu= nubase->first; nu; nu= nu->next) {
-			next= nu->next;
 			if(nu->type == CU_BEZIER) {
 				bezt= nu->bezt;
 				for(a=0; a<nu->pntsu-1; a++) {
diff --git a/source/blender/editors/include/ED_anim_api.h b/source/blender/editors/include/ED_anim_api.h
index 1ca33e73656..5ecbaeb1c87 100644
--- a/source/blender/editors/include/ED_anim_api.h
+++ b/source/blender/editors/include/ED_anim_api.h
@@ -251,7 +251,7 @@ typedef enum eAnimFilter_Flags {
 /* Actions (also used for Dopesheet) */
 	/* Action Channel Group */
 #define EDITABLE_AGRP(agrp) ((agrp->flag & AGRP_PROTECTED)==0)
-#define EXPANDED_AGRP(agrp) \
+#define EXPANDED_AGRP(ac, agrp) \
 	( ( ((ac)->spacetype == SPACE_IPO) && (agrp->flag & AGRP_EXPANDED_G) ) || \
 	  ( ((ac)->spacetype != SPACE_IPO) && (agrp->flag & AGRP_EXPANDED)   ) )
 #define SEL_AGRP(agrp) ((agrp->flag & AGRP_SELECTED) || (agrp->flag & AGRP_ACTIVE))
diff --git a/source/blender/editors/space_node/drawnode.c b/source/blender/editors/space_node/drawnode.c
index 68b9170b837..7d92c308f17 100644
--- a/source/blender/editors/space_node/drawnode.c
+++ b/source/blender/editors/space_node/drawnode.c
@@ -1643,6 +1643,8 @@ void draw_nodespace_color_info(ARegion *ar, int color_manage, int channels, int
 		BLF_draw_ascii(blf_mono_font, str, sizeof(str));
 		dx += BLF_width(blf_mono_font, str);
 	}
+
+	(void)dx;
 }
 
 #if 0
diff --git a/source/blender/imbuf/intern/scaling.c b/source/blender/imbuf/intern/scaling.c
index 9bc4ba6776c..f6a6a644977 100644
--- a/source/blender/imbuf/intern/scaling.c
+++ b/source/blender/imbuf/intern/scaling.c
@@ -952,6 +952,7 @@ static struct ImBuf *scaledownx(struct ImBuf *ibuf, int newx)
 		ibuf->mall |= IB_rectfloat;
 		ibuf->rect_float = _newrectf;
 	}
+	(void)rect_size; /* UNUSED in release builds */
 	
 	ibuf->x = newx;
 	return(ibuf);
@@ -1082,6 +1083,7 @@ static struct ImBuf *scaledowny(struct ImBuf *ibuf, int newy)
 		ibuf->mall |= IB_rectfloat;
 		ibuf->rect_float = (float *) _newrectf;
 	}
+	(void)rect_size; /* UNUSED in release builds */
 	
 	ibuf->y = newy;
 	return(ibuf);
diff --git a/source/blender/render/intern/source/shadeoutput.c b/source/blender/render/intern/source/shadeoutput.c
index 768f1425c6f..97c6c562028 100644
--- a/source/blender/render/intern/source/shadeoutput.c
+++ b/source/blender/render/intern/source/shadeoutput.c
@@ -726,7 +726,7 @@ static float Toon_Diff( float *n, float *l, float *v, float size, float smooth )
 /* in latter case, only last multiplication uses 'nl' */
 static float OrenNayar_Diff(float nl, float *n, float *l, float *v, float rough )
 {
-	float i, nh, nv, vh, realnl, h[3];
+	float i/*, nh*/, nv, vh, realnl, h[3];
 	float a, b, t, A, B;
 	float Lit_A, View_A, Lit_B[3], View_B[3];
 	
@@ -735,8 +735,8 @@ static float OrenNayar_Diff(float nl, float *n, float *l, float *v, float rough
 	h[2]= v[2]+l[2];
 	normalize_v3(h);
 	
-	nh= n[0]*h[0]+n[1]*h[1]+n[2]*h[2]; /* Dot product between surface normal and half-way vector */
-	if(nh<0.0f) nh = 0.0f;
+	/* nh= n[0]*h[0]+n[1]*h[1]+n[2]*h[2]; */ /* Dot product between surface normal and half-way vector */
+	/* if(nh<0.0f) nh = 0.0f; */
 	
 	nv= n[0]*v[0]+n[1]*v[1]+n[2]*v[2]; /* Dot product between surface normal and view vector */
 	if(nv<=0.0f) nv= 0.0f;
diff --git a/source/gameengine/Ketsji/KX_Scene.cpp b/source/gameengine/Ketsji/KX_Scene.cpp
index 4a379f46440..080765c7846 100644
--- a/source/gameengine/Ketsji/KX_Scene.cpp
+++ b/source/gameengine/Ketsji/KX_Scene.cpp
@@ -1514,7 +1514,7 @@ void KX_Scene::LogicUpdateFrame(double curtime, bool frame)
 void KX_Scene::LogicEndFrame()
 {
 	m_logicmgr->EndFrame();
-	int numobj = m_euthanasyobjects->GetCount();
+	int numobj;
 
 	KX_GameObject* obj;