54
56
int pagesize = getpagesize ();
56
(char *) mmap (NULL, 2 * pagesize, PROT_READ | PROT_WRITE,
58
(char *) mmap (NULL, 2 * pagesize, PROT_READ | PROT_WRITE,
58
60
if (two_pages != (char *)(-1)
65
67
if (memchr (fence, 0, 0))
67
69
strcpy (fence - 9, "12345678");
68
70
if (memchr (fence - 9, 0, 79) != fence - 1)
72
76
]])], [gl_cv_func_memchr_works=yes], [gl_cv_func_memchr_works=no],
73
77
[dnl Be pessimistic for now.
74
78
gl_cv_func_memchr_works="guessing no"])])
75
79
if test "$gl_cv_func_memchr_works" != yes; then