Fix signed/unsigned comparison warning
@@ -949,7 +949,7 @@ decompress2 (PyObject * Py_UNUSED (self), PyObject * args,
const char * source_end;
PyObject * py_dest;
size_t result = 0;
- size_t block_size;
+ int block_size;
LZ4F_frameInfo_t frame_info;
static char *kwlist[] = { "context",
"source",
