portability improvements

[xonotic/netradiant.git] / libs / math / vector.h

diff --git a/libs/math/vector.h b/libs/math/vector.h
index 15c31def3aaf871ef252c3a910c591c9b7d223df..777d9d3815526a730817ac88ea9f641125965650 100644 (file)
--- a/libs/math/vector.h
+++ b/libs/math/vector.h
@@ -27,13 +27,6 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 #include "generic/vector.h"
 
-#if 0
-
-#define        lrint(dbl)              ((int)((dbl) + 0.5))
-#define        lrintf(flt)             ((int)((flt) + 0.5))
-
-#endif
-
 #if defined (_MSC_VER)
 
 inline int lrint (double flt)
@@ -49,20 +42,31 @@ inline int lrint (double flt)
        return i;
 } 
 
-#else // lrint is part of ISO C99
+#elif defined(__FreeBSD__)
 
+inline int lrint(double f)
+{
+  return static_cast<int>(f + 0.5);
+}
+
+#elif defined(__GCC__)
+
+ // lrint is part of ISO C99
 #define        _ISOC9X_SOURCE  1
 #define _ISOC99_SOURCE 1
 
 #define        __USE_ISOC9X    1
 #define        __USE_ISOC99    1
 
+#else
+#error "unsupported platform"
 #endif
 
 #include <cmath>
 #include <float.h>
 #include <algorithm>
 
+
 //#include "debugging/debugging.h"
 
 /// \brief Returns true if \p self is equal to other \p other within \p epsilon.