--- src/raster.cxx	2004-09-27 00:45:31.000000000 -0400
+++ src/raster.cxx	2013-05-13 13:53:50.000000000 -0400
@@ -10,4 +10,6 @@
 #include <gfx/raster.h>
 
+#include <string.h> /* For memcpy() */
+
 #include <string>
 #include <cctype>
@@ -49,6 +51,6 @@
 
 
-static char *img_names[] = {"PPM", "PNG", "TIFF", "JPEG"};
-static char *img_ext[] = {"ppm", "png", "tif", "jpg"};
+static const char *img_names[] = {"PPM", "PNG", "TIFF", "JPEG"};
+static const char *img_ext[] = {"ppm", "png", "tif", "jpg"};
 
 const char *image_type_name(int type)
--- src/gltools.cxx	2005-06-18 09:58:15.000000000 -0400
+++ src/gltools.cxx	2013-05-13 13:56:31.000000000 -0400
@@ -57,5 +57,5 @@
         GLuint nnames   = *ptr++;
         GLuint cur_zmin = *ptr++;
-        /* GLuint cur_zmax = */ *ptr++;
+        ptr++;
 
         if( cur_zmin < zmin )
--- src/arcball.cxx	2004-09-27 00:45:31.000000000 -0400
+++ src/arcball.cxx	2013-05-13 13:58:11.000000000 -0400
@@ -20,22 +20,4 @@
 {
 
-// Converts a unit quaternion to two points on the unit sphere
-static void quat_to_sphere(const Quat& q, Vec3& from, Vec3& to)
-{
-    const Vec3& v = q.vector();
-
-    double s = sqrt(v[0]*v[0] + v[1]*v[1]);
-    if( s==0.0 )
-	from = Vec3(0.0, 1.0, 0.0);
-    else
-	from = Vec3(-v[1]/s, v[0]/s, 0.0);
-
-    to[0] = q.scalar()*from[0] - v[2]*from[1];
-    to[1] = q.scalar()*from[1] + v[2]*from[2];
-    to[2] = v[0]*from[1] - v[1]*from[0];
-
-    if(q.scalar() < 0.0)  from = -from;
-}
-
 // Converts to points on unit sphere into a unit quaternion
 static Quat quat_from_sphere(const Vec3& from, const Vec3& to)