Index: src/OpenCV-2.3.1/modules/flann/include/opencv2/flann/dist.h
===================================================================
--- src/OpenCV-2.3.1/modules/flann/include/opencv2/flann/dist.h	2011-09-12 20:42:27.000000000 +0200
+++ src/OpenCV-2.3.1/modules/flann/include/opencv2/flann/dist.h	2012-02-05 15:10:28.715982724 +0100
@@ -60,7 +60,7 @@
 inline double abs<double>(double x) { return fabs(x); }
 
 template<>
-inline long double abs<long double>(long double x) { return fabsl(x); }
+inline long double abs<long double>(long double x) { return fabs(x); }
 
 
 template<typename T>