X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fo_str.c;h=b0e7524820ce4af5555f101ab7c5b00416482cf4;hp=4e2ef88e6139186ec4a95d3fba063e855708638c;hb=efdb2d6c797112e58e304d3e5300f169dbb16e95;hpb=43c4116cd7413b3c4ffc8d409eeac5b0262c4358

diff --git a/crypto/o_str.c b/crypto/o_str.c
index 4e2ef88e61..b0e7524820 100644
--- a/crypto/o_str.c
+++ b/crypto/o_str.c
@@ -263,7 +263,9 @@ int openssl_strerror_r(int errnum, char *buf, size_t buflen)
 {
 #if defined(_MSC_VER) && _MSC_VER>=1400
     return !strerror_s(buf, buflen, errnum);
-#elif (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE
+#elif defined(_GNU_SOURCE)
+    return strerror_r(errnum, buf, buflen) != NULL;
+#elif (_POSIX_C_SOURCE >= 200112L || _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