Description: add required header for std::modf
Author: Sascha Steinbiss <sascha@steinbiss.name>
--- a/kmc_dump/nc_utils.h
+++ b/kmc_dump/nc_utils.h
@@ -11,6 +11,7 @@
   Date   : 2015-08-21
 */
 
+#include <cmath>
 #include <string>
 #include "../kmc_api/kmer_defs.h"
 
@@ -135,4 +136,4 @@
 	}
 };
 
-#endif
\ No newline at end of file
+#endif