Correct build settings for xnu kext. Changed calloc name to avoid potential conflicts
diff --git a/cs.c b/cs.c
index 5f75557..3662729 100644
--- a/cs.c
+++ b/cs.c
@@ -94,12 +94,12 @@
 extern void kern_os_free(void* addr);
 extern void* kern_os_realloc(void* addr, size_t nsize);
 
-static void* kern_os_calloc(size_t num, size_t size) {
+static void* cs_kern_os_calloc(size_t num, size_t size) {
 	return kern_os_malloc(num * size); // malloc bzeroes the buffer
 }
 
 cs_malloc_t cs_mem_malloc = kern_os_malloc;
-cs_calloc_t cs_mem_calloc = kern_os_calloc;
+cs_calloc_t cs_mem_calloc = cs_kern_os_calloc;
 cs_realloc_t cs_mem_realloc = kern_os_realloc;
 cs_free_t cs_mem_free = kern_os_free;
 cs_vsnprintf_t cs_vsnprintf = vsnprintf;