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diff -Naur svgalib-1.9.25.orig/threeDKit/quickmath.h svgalib-1.9.25/threeDKit/quickmath.h
--- svgalib-1.9.25.orig/threeDKit/quickmath.h 2005-08-03 15:07:32.000000000 +0200
+++ svgalib-1.9.25/threeDKit/quickmath.h 2015-08-03 19:45:12.864161135 +0200
@@ -76,76 +76,17 @@
#else
-extern inline double fsqr (double x)
-{
- return x * x;
-}
-
-extern inline int lsqr (int x)
-{
- return (int) x *x;
-}
-
-extern inline double fmax (double a, double b)
-{
- return max (a, b);
-}
-
-extern inline double fmin (double a, double b)
-{
- return min (a, b);
-}
-
-extern inline double fsgn (double a)
-{
- return (a == 0.0 ? 0.0 : (a > 0.0 ? 1.0 : -1.0));
-}
-
-extern inline double dot (Vec a, Vec b)
-{
- return a.x * b.x + a.y * b.y + a.z * b.z;
-}
-
-extern inline Vec cross (Vec a, Vec b)
-{
- Vec c;
- c.x = a.y * b.z - a.z * b.y;
- c.y = a.z * b.x - a.x * b.z;
- c.z = a.x * b.y - a.y * b.x;
- return c;
-}
-
-extern inline Vec plus (Vec a, Vec b)
-{
- Vec c;
- c.x = a.x + b.x;
- c.y = a.y + b.y;
- c.z = a.z + b.z;
- return c;
-}
-
-extern inline Vec minus (Vec a, Vec b)
-{
- Vec c;
- c.x = a.x - b.x;
- c.y = a.y - b.y;
- c.z = a.z - b.z;
- return c;
-}
-
-extern inline Vec times (Vec a, double f)
-{
- Vec c;
- c.x = a.x * f;
- c.y = a.y * f;
- c.z = a.z * f;
- return c;
-}
-
-extern inline double norm (Vec a)
-{
- return sqrt (sqr (a.x) + sqr (a.y) + sqr (a.z));
-}
+extern inline double fsqr (double x);
+extern inline int lsqr (int x);
+extern inline double fmax (double a, double b);
+extern inline double fmin (double a, double b);
+extern inline double fsgn (double a);
+extern inline double dot (Vec a, Vec b);
+extern inline Vec cross (Vec a, Vec b);
+extern inline Vec plus (Vec a, Vec b);
+extern inline Vec minus (Vec a, Vec b);
+extern inline Vec times (Vec a, double f);
+extern inline double norm (Vec a);
#endif
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