Fix alignment issues (can remove a clang warning, and also makes our code more portable!)

Makefile

@@ -29,7 +29,6 @@ ifeq ($(CC), clang)
 	    -Wno-conversion                    \
 	    -Wno-missing-prototypes            \
 	    -Wno-float-equal                   \
-	    -Wno-cast-align                    \
 	    -Wno-missing-variable-declarations \
 	    -Wno-unknown-warning-option
 else

gmqcc.h

@@ -361,7 +361,7 @@ void _util_vec_grow(void **a, size_t i, size_t s);
 )
 
 /* exposed interface */
-#define vec_meta(A)       (((vector_t*)(A)) - 1)
+#define vec_meta(A)       (((vector_t*)((void*)A)) - 1)
 #define vec_free(A)       ((void)((A) ? (mem_d((void*)vec_meta(A)), (A) = NULL) : 0))
 #define vec_push(A,V)     (GMQCC_VEC_WILLGROW((A),1), (A)[vec_meta(A)->used++] = (V))
 #define vec_size(A)       ((A) ? vec_meta(A)->used : 0)

util.c

@@ -465,8 +465,7 @@ GMQCC_INLINE size_t util_hthash(hash_table_t *ht, const char *key) {
     const unsigned char *data  = (const unsigned char*)key;
 
     while (size >= 4) {
-        alias = *(uint32_t*)data;
-
+        alias  = (data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24));
         alias *= mix;
         alias ^= alias >> rot;
         alias *= mix;