*/
char *OPENSSL_buf2hexstr(const unsigned char *buffer, long len)
{
- const static char hexdig[] = "0123456789ABCDEF";
+ static const char hexdig[] = "0123456789ABCDEF";
char *tmp, *q;
const unsigned char *p;
int i;
return !strerror_s(buf, buflen, errnum);
#elif defined(_GNU_SOURCE)
return strerror_r(errnum, buf, buflen) != NULL;
-#elif (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
+#elif (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L) || \
+ (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 600)
/*
* We can use "real" strerror_r. The OpenSSL version differs in that it
* gives 1 on success and 0 on failure for consistency with other OpenSSL