Remove -Wno-shift-op-parentheses for fusl build

fusl/src/malloc/malloc.c

 #define _GNU_SOURCE
 #include <stdlib.h>
 #include <string.h>
 #include <limits.h>
 #include <stdint.h>
 #include <errno.h>
 #include <sys/mman.h>
 #include "libc.h"
 #include "atomic.h"
 #include "pthread_impl.h"
@@ skipping 105 matching lines @@
         x = x / SIZE_ALIGN - 1;
         if (x <= 32) return x;
         if (x > 0x1c00) return 63;
         return ((union { float v; uint32_t r; }){(int)x}.r>>21) - 496;
 }
 
 static int bin_index_up(size_t x)
 {
         x = x / SIZE_ALIGN - 1;
         if (x <= 32) return x;
-        return ((union { float v; uint32_t r; }){(int)x}.r+0x1fffff>>21) - 496;
+        return (((union { float v; uint32_t r; }){(int)x}.r+0x1fffff)>>21) - 496;

[viettrungluu, 2016/01/12 18:40:02]

What is this I don't even....

 }
 
 #if 0
 void __dump_heap(int x)
 {
         struct chunk *c;
         int i;
         for (c = (void *)mal.heap; CHUNK_SIZE(c); c = NEXT_CHUNK(c))
                 fprintf(stderr, "base %p size %zu (%d) flags %d/%d\n",
                         c, CHUNK_SIZE(c), bin_index(CHUNK_SIZE(c)),
@@ skipping 375 matching lines @@
 #if 1
                 __madvise((void *)a, b-a, MADV_DONTNEED);
 #else
                 __mmap((void *)a, b-a, PROT_READ|PROT_WRITE,
                         MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED, -1, 0);
 #endif
         }
 
         unlock_bin(i);
 }