--- ./src/egl/opengles2/es2gears.c.orig
+++ ./src/egl/opengles2/es2gears.c
@@ -109,13 +109,15 @@
    c[4] = 1;
    v = gear->vertices;
    for (i = 0; i < teeth; i++) {
+      GLint j;
       s[0] = s[4];
       c[0] = c[4];
-      sincos(i * 2.0 * M_PI / teeth + da, &s[1], &c[1]);
-      sincos(i * 2.0 * M_PI / teeth + da * 2, &s[2], &c[2]);
-      sincos(i * 2.0 * M_PI / teeth + da * 3, &s[3], &c[3]);
-      sincos(i * 2.0 * M_PI / teeth + da * 4, &s[4], &c[4]);
 
+      for (j=1; j <=4; j++) {
+         s[j] = sin(i * 2.0 * M_PI / teeth + da * j);
+         c[j] = cos(i * 2.0 * M_PI / teeth + da * j);
+      }
+
       normal[0] = 0.0;
       normal[1] = 0.0;
       normal[2] = 1.0;
@@ -199,7 +201,8 @@
 {
    double s, c;
 
-   sincos(angle, &s, &c);
+   s = sin(angle);
+   c = cos(angle);
    GLfloat r[16] = {
       x * x * (1 - c) + c,     y * x * (1 - c) + z * s, x * z * (1 - c) - y * s, 0,
       x * y * (1 - c) - z * s, y * y * (1 - c) + c,     y * z * (1 - c) + x * s, 0,