Initialise variables not set on OSX in ocl.c.
diff --git a/ocl.c b/ocl.c
index cc9b356..7a7e1da 100644
--- a/ocl.c
+++ b/ocl.c
@@ -502,8 +502,8 @@ _clState *initCl(unsigned int gpu, char *name, size_t nameSize)
#endif
FILE *binaryfile;
- size_t *binary_sizes;
- char **binaries;
+ size_t *binary_sizes = NULL;
+ char **binaries = NULL;
int pl;
char *source = file_contents(filename, &pl);
size_t sourceSize[] = {(size_t)pl};