more linux hackery

git-svn-id: svn://svn.icculus.org/blackshades/trunk@20 5198baeb-e213-0410-be47-fc2ff85ca46f

1 files changed, 4 insertions, 0 deletions

diff --git a/Source/Quaternions.cpp b/Source/Quaternions.cpp
index b806ec0..0353c0d 100644
--- a/Source/Quaternions.cpp
+++ b/Source/Quaternions.cpp
@@ -285,6 +285,7 @@ void Normalise(XYZ *vectory) {
 
 float fast_sqrt (register float arg)
 {	
+#ifdef MAC
 	// Can replace with slower return std::sqrt(arg);
 	register float result;
 
@@ -299,6 +300,9 @@ float fast_sqrt (register float arg)
 	result = result + 0.5 * result * (1.0 - arg * result * result);
 	
 	return result * arg;
+#else
+	std::sqrt(arg);
+#endif
 }
 
 float normaldotproduct(XYZ point1, XYZ point2){