Fix compilation for kfreebsd architechtures.
--- a/src/io/avi_pipp/pipp_avi_write_dib.cpp
+++ b/src/io/avi_pipp/pipp_avi_write_dib.cpp
@@ -20,6 +20,9 @@
 #elif defined(BSD)
 #define fseek64 fseeko  // DragonFly BSD, FreeBSD, OpenBSD, NetBSD
 #define ftell64 ftello  // DragonFly BSD, FreeBSD, OpenBSD, NetBSD
+#elif defined (__FreeBSD_kernel__) && defined (__GLIBC__)
+#define fseek64 fseeko  // KFreeBSD
+#define ftell64 ftello  // KFreeBSD
 #else
 #define fseek64 _fseeki64  // Windows
 #define ftell64 _ftelli64  // Windows
