Some cleanup.

csg.cpp

@@ -30,8 +30,8 @@ there will be no brush overlap after csg phase
 
 */
 
-int minplanenums[3];
-int maxplanenums[3];
+static int minplanenums[3];
+static int maxplanenums[3];
 
 //===========================================================================
 //

l_bsp_ent.cpp

@@ -145,9 +145,9 @@ void 	SetKeyValue (entity_t *ent, const char *key, const char *value)
 	ep->value = copystring(value);
 }
 
-const char 	*ValueForKey (entity_t *ent, const char *key)
+const char 	*ValueForKey (const entity_t *ent, const char *key)
 {
-	epair_t	*ep;
+	const epair_t	*ep;
 
 	for (ep=ent->epairs ; ep ; ep=ep->next)
 		if (!strcmp (ep->key, key) )
@@ -161,7 +161,7 @@ vec_t	FloatForKey (entity_t *ent, const char *key)
 	return atof(k);
 }
 
-void 	GetVectorForKey (entity_t *ent, const char *key, vec3_t vec)
+void 	GetVectorForKey (const entity_t *ent, const char *key, vec3_t vec)
 {
 	const char	*k;
 	double	v1, v2, v3;

l_bsp_ent.h

@@ -55,9 +55,9 @@ extern	entity_t entities[MAX_MAP_ENTITIES];
 
 void StripTrailing(char *e);
 void SetKeyValue(entity_t *ent, const char *key, const char *value);
-const char *ValueForKey(entity_t *ent, const char *key); // will return "" if not present
+const char *ValueForKey(const entity_t *ent, const char *key); // will return "" if not present
 vec_t FloatForKey(entity_t *ent, const char *key);
-void GetVectorForKey(entity_t *ent, const char *key, vec3_t vec);
+void GetVectorForKey(const entity_t *ent, const char *key, vec3_t vec);
 qboolean ParseEntity(script_t *script);
 epair_t *ParseEpair(script_t *script);
 void PrintEntity(entity_t *ent);

l_qfiles.cpp

@@ -41,7 +41,7 @@ typedef struct qfile_exttype_s
 	int type;
 } qfile_exttyp_t;
 
-qfile_exttyp_t quakefiletypes[] =
+const qfile_exttyp_t quakefiletypes[] =
 {
 	{QFILEEXT_UNKNOWN, QFILETYPE_UNKNOWN},
 	{QFILEEXT_PAK, QFILETYPE_PAK},

leakfile.cpp

@@ -41,12 +41,12 @@ that leads from the outside leaf to a specifically
 occupied leaf
 =============
 */
-void LeakFile (tree_t *tree)
+void LeakFile (const tree_t *tree)
 {
 	vec3_t	mid;
 	FILE	*linefile;
 	char	filename[1024];
-	node_t	*node;
+	const node_t	*node;
 	int		count;
 
 	if (!tree->outside_node.occupied)

map.cpp

@@ -853,7 +853,7 @@ qboolean WriteOriginBrush(FILE *fp, vec3_t origin)
 // Returns:					-
 // Changes Globals:		-
 //===========================================================================
-mapbrush_t *GetAreaPortalBrush(const entity_t *mapent)
+static mapbrush_t *GetAreaPortalBrush(const entity_t *mapent)
 {
 	int portalnum, bn;
 	mapbrush_t *brush = NULL;

qbsp.h

@@ -453,7 +453,7 @@ void GLS_EndScene (void);
 // leakfile.c
 //=============================================================================
 
-void LeakFile (tree_t *tree);
+void LeakFile (const tree_t *tree);
 
 //=============================================================================
 // tree.c

textures.cpp

@@ -24,7 +24,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include "qbsp.h"
 #include "l_bsp_q2.h"
 
-int nummiptex;
+static int nummiptex;
 textureref_t textureref[MAX_MAP_TEXTURES];
 
 //===========================================================================
@@ -73,7 +73,7 @@ int FindMiptex (const char *name)
 // Returns:				-
 // Changes Globals:		-
 //===========================================================================
-vec3_t	baseaxis[18] =
+const vec3_t 	baseaxis[18] =
 {
 {0,0,1}, {1,0,0}, {0,-1,0},		// floor
 {0,0,-1}, {1,0,0}, {0,-1,0},		// ceiling