Changes proposed by Mathieu Malaterre from the GDCM project... Thanks a lot Mathieu

- '//' replaced by '/* */'
- inclusion of int.h in int.c
- inclusion of j2k.h in int.h in order to export symbols
- adding (void) var when a variable is declared but not used
- some explicit cast
- CLOCKS_PER_SEC is declared as float in bcc55, so there is a need to cast it to int for the modulo operation
- some variables changed from float -> double

libopenjpeg/int.c

@@ -24,6 +24,8 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include "int.h"
+
 /*
  * Get the minimum of two integers.
  *