o some warning fixes (compare of int to NULL, missing prototype)

source/blender/blenkernel/intern/DerivedMesh.c

@@ -1435,7 +1435,6 @@ DerivedMesh *derivedmesh_from_displistmesh(DispListMesh *dlm, float (*vertexCos)
 
 /***/
 
-
 DerivedMesh *mesh_create_derived_for_modifier(Object *ob, ModifierData *md)
 {
 	Mesh *me = ob->data;
@@ -1591,7 +1590,7 @@ static void mesh_calc_modifiers(Object *ob, float (*inputVertexCos)[3], DerivedM
 	}
 }
 
-static vec3f *editmesh_getVertexCos(EditMesh *em, int *numVerts_r)
+static float (*editmesh_getVertexCos(EditMesh *em, int *numVerts_r))[3]
 {
 	int i, numVerts = *numVerts_r = BLI_countlist(&em->verts);
 	float (*cos)[3];

source/blender/blenkernel/intern/ipo.c

@@ -256,7 +256,7 @@ void make_local_obipo(Ipo *ipo)
 		ob= ob->id.next;
 	}
 	
-	if(local && lib==NULL) {
+	if(local && lib==0) {
 		ipo->id.lib= 0;
 		ipo->id.flag= LIB_LOCAL;
 		new_id(0, (ID *)ipo, 0);
@@ -300,7 +300,7 @@ void make_local_matipo(Ipo *ipo)
 		ma= ma->id.next;
 	}
 	
-	if(local && lib==NULL) {
+	if(local && lib==0) {
 		ipo->id.lib= 0;
 		ipo->id.flag= LIB_LOCAL;
 		new_id(0, (ID *)ipo, 0);
@@ -344,7 +344,7 @@ void make_local_keyipo(Ipo *ipo)
 		key= key->id.next;
 	}
 	
-	if(local && lib==NULL) {
+	if(local && lib==0) {
 		ipo->id.lib= 0;
 		ipo->id.flag= LIB_LOCAL;
 		new_id(0, (ID *)ipo, 0);

source/blender/blenkernel/intern/sound.c

@@ -5,6 +5,7 @@
  */
 
 #include <string.h>
+#include <stdlib.h>
 
 #include "MEM_guardedalloc.h"
 

source/blender/python/api2_2x/BGL.c

@@ -1611,3 +1611,4 @@ PyObject *BGL_Init(void)
       
 	return mod;
 }
+

source/blender/src/interface.c

@@ -966,7 +966,7 @@ static MenuData *menudata_new(char *instr) {
 
 	md->instr= instr;
 	md->title= NULL;
-	md->titleicon= NULL;
+	md->titleicon= 0;
 	md->items= NULL;
 	md->nitems= md->itemssize= 0;