--- dyld/dyld-655.1/include/objc-shared-cache.h
+++ dyld/dyld-421.2/include/objc-shared-cache.h
@@ -114,13 +114,13 @@
 
 // Perfect hash code is at the end of this file.
 
-struct __attribute__((packed)) perfect_hash {
+struct perfect_hash {
     uint32_t capacity;
     uint32_t occupied;
     uint32_t shift;
     uint32_t mask;
     uint64_t salt;
-
+    
     uint32_t scramble[256];
     uint8_t *tab;  // count == mask+1; free with delete[]
     
@@ -159,7 +159,7 @@
 // Precomputed perfect hash table of strings.
 // Base class for precomputed selector table and class table.
 // Edit objc-sel-table.s if you change this structure.
-struct __attribute__((packed)) objc_stringhash_t {
+struct objc_stringhash_t {
     uint32_t capacity;
     uint32_t occupied;
     uint32_t shift;
@@ -167,7 +167,7 @@
     uint32_t unused1;  // was zero
     uint32_t unused2;  // alignment pad
     uint64_t salt;
-
+    
     uint32_t scramble[256];
     uint8_t tab[0];                   /* tab[mask+1] (always power-of-2) */
     // uint8_t checkbytes[capacity];  /* check byte for each string */
@@ -581,7 +581,7 @@
         objc_stringhash_offset_t *o;
         
         o = protocolOffsets();
-        for (objc_stringhash_offset_t i = 0; i < (int)capacity; i++) {
+        for (objc_stringhash_offset_t i = 0; i < capacity; i++) {
             S32(o[i]);
         }
 
@@ -1038,13 +1038,13 @@
 // gencode  *final;                          /* output, code for the final hash */
 {
   ub4 loga = log2u(alen);                            /* log based 2 of blen */
-  dispatch_apply(nkeys, DISPATCH_APPLY_AUTO, ^(size_t index) {
-    ub4 i = (ub4)index;
+  ub4 i;
+  for (i = 0; i < nkeys; i++) {
     key *mykey = keys+i;
     ub8 hash = lookup8(mykey->name_k, mykey->len_k, salt);
     mykey->a_k = (loga > 0) ? (ub4)(hash >> (UB8BITS-loga)) : 0;
     mykey->b_k = (blen > 1) ? (hash & (blen-1)) : 0;
-  });
+  }
 }
 
 
@@ -1431,7 +1431,7 @@
   ub8       salt;                       /* a parameter to the hash function */
   ub4       scramble[SCRAMBLE_LEN];           /* used in final hash function */
   int ok;
-  uint32_t i;
+  int i;
   perfect_hash result;
 
   /* read in the list of keywords */