Update year, wording tweak

[openssl.git] / crypto / o_str.c

diff --git a/crypto/o_str.c b/crypto/o_str.c
index beabec0ddc14a75b5ca3dab3a97aa93818695ae2..d8516c27bbbede979a5d428fca1ec8be63765ed6 100644 (file)
--- a/crypto/o_str.c
+++ b/crypto/o_str.c
@@ -227,7 +227,8 @@ int openssl_strerror_r(int errnum, char *buf, size_t buflen)
     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