progs/redbook: Silence compiler warnings.

1 files changed, 6 insertions, 6 deletions

diff --git a/progs/redbook/image.c b/progs/redbook/image.c
index dc1a7246eb..fa3b46f5ed 100644
--- a/progs/redbook/image.c
+++ b/progs/redbook/image.c
@@ -58,7 +58,7 @@ GLubyte checkImage[checkImageHeight][checkImageWidth][3];
 static GLdouble zoomFactor = 1.0;
 static GLint height;
 
-void makeCheckImage(void)
+static void makeCheckImage(void)
 {
    int i, j, c;
     
@@ -72,7 +72,7 @@ void makeCheckImage(void)
    }
 }
 
-void init(void)
+static void init(void)
 {    
    glClearColor (0.0, 0.0, 0.0, 0.0);
    glShadeModel(GL_FLAT);
@@ -80,7 +80,7 @@ void init(void)
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 }
 
-void display(void)
+static void display(void)
 {
    glClear(GL_COLOR_BUFFER_BIT);
    glRasterPos2i(0, 0);
@@ -89,7 +89,7 @@ void display(void)
    glFlush();
 }
 
-void reshape(int w, int h)
+static void reshape(int w, int h)
 {
    glViewport(0, 0, (GLsizei) w, (GLsizei) h);
    height = (GLint) h;
@@ -100,7 +100,7 @@ void reshape(int w, int h)
    glLoadIdentity();
 }
 
-void motion(int x, int y)
+static void motion(int x, int y)
 {
    static GLint screeny;
    
@@ -113,7 +113,7 @@ void motion(int x, int y)
 }
 
 /* ARGSUSED1 */
-void keyboard(unsigned char key, int x, int y)
+static void keyboard(unsigned char key, int x, int y)
 {
    switch (key) {
       case 'r':