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32 #include <sys/param.h>
42 confstr(int name, char *buf, size_t len)
45 const char UPE[] = "unsupported programming environment";
53 * POSIX/SUS ``Programming Environments'' stuff
55 * We don't support more than one programming environment
56 * on any platform (yet), so we just return the empty
57 * string for the environment we are compiled for,
58 * and the string "unsupported programming environment"
59 * for anything else. (The Standard says that if these
60 * values are used on a system which does not support
61 * this environment -- determined via sysconf() -- then
62 * the value we return is unspecified. So, we return
63 * something which will cause obvious breakage.)
65 case _CS_POSIX_V6_ILP32_OFF32_CFLAGS:
66 case _CS_POSIX_V6_ILP32_OFF32_LDFLAGS:
67 case _CS_POSIX_V6_ILP32_OFF32_LIBS:
68 case _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS:
69 case _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS:
70 case _CS_POSIX_V6_LPBIG_OFFBIG_LIBS:
72 * These two environments are never supported.
77 case _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS:
78 case _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS:
79 case _CS_POSIX_V6_ILP32_OFFBIG_LIBS:
80 if (sizeof(long) * CHAR_BIT == 32 &&
81 sizeof(off_t) > sizeof(long))
87 case _CS_POSIX_V6_LP64_OFF64_CFLAGS:
88 case _CS_POSIX_V6_LP64_OFF64_LDFLAGS:
89 case _CS_POSIX_V6_LP64_OFF64_LIBS:
90 if (sizeof(long) * CHAR_BIT >= 64 &&
91 sizeof(void *) * CHAR_BIT >= 64 &&
92 sizeof(int) * CHAR_BIT >= 32 &&
93 sizeof(off_t) >= sizeof(long))
99 case _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS:
100 /* XXX - should have more complete coverage */
101 if (sizeof(long) * CHAR_BIT >= 64)
102 p = "_POSIX_V6_LP64_OFF64";
104 p = "_POSIX_V6_ILP32_OFFBIG";
108 if (len != 0 && buf != NULL)
109 strlcpy(buf, p, len);
110 return (strlen(p) + 1);