1 files changed, 10 insertions, 10 deletions
diff --git a/src/contour.c b/src/contour.c
index 8022adb..813d6ef 100644
--- a/src/contour.c
+++ b/src/contour.c
@@ -36,13 +36,13 @@ typedef struct contour_struct {
 
 
 
-void 
+static void 
 cont_reset_point(Contour c)
 {
   c->current_line.npts = 0;
 }
 
-void 
+static void 
 cont_add_point(Contour c, Jwgpos pos)
 {
   Jwgpos         *ptr;
@@ -73,7 +73,7 @@ cont_add_point(Contour c, Jwgpos pos)
 
 }
 
-unsigned char
+static unsigned char
 find_direction(Point p1, Point p2)
 {
   p2.x -= p1.x;
@@ -113,7 +113,7 @@ find_direction(Point p1, Point p2)
 
 }
 
-Point
+static Point
 add_direction(Point p, int d)
 {
   Point           dirs[8] = {{-1, -1}, {0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}};
@@ -125,13 +125,13 @@ add_direction(Point p, int d)
 }
 
 
-int
+static int
 points_marked(Contour c, Point p1, Point p2)
 {
   return (c->fcol[p1.y])[p1.x] & find_direction(p1, p2);
 }
 
-void
+static void
 mark_points(Contour c, Point p1, Point p2)
 {
   (c->fcol[p1.y])[p1.x] |= find_direction(p1, p2);
@@ -140,7 +140,7 @@ mark_points(Contour c, Point p1, Point p2)
 
 
 
-trace(Contour c, Point p1, Point p2, Point pl, float level)
+static void trace(Contour c, Point p1, Point p2, Point pl, float level)
 {
   Point           pn;
   float           v1, v2, vn;
@@ -241,7 +241,7 @@ fflush(stdout);
 
 
 
-possible(Contour c, int x1, int y1, int x2, int y2, int xl, int yl, float level)
+static void possible(Contour c, int x1, int y1, int x2, int y2, int xl, int yl, float level)
 {
   Point           p1, p2, pl;
 
@@ -261,7 +261,7 @@ possible(Contour c, int x1, int y1, int x2, int y2, int xl, int yl, float level)
 }
 
 
-contour(Contour c, float level)
+static void contour(Contour c, float level)
 {
   int             x, y;
   float         **c0, **c1;
@@ -304,7 +304,7 @@ contour(Contour c, float level)
 
 
 
-void
+INTERNAL void
 do_contour(Handle h, float level, int side, int lp)
 {
   Contour         c = (Contour) malloc(sizeof(struct contour_struct));