BUILD/MINOR: ssl: avoid a build warning on LIBRESSL_VERSION with -Wundef

Openssl-compat emits a warning for the test on LIBRESSL_VERSION that might
be underfined, if built with -Wundef. The fix is easy, let's do it. Related
to GH issue #1369.

diff --git a/include/haproxy/openssl-compat.h b/include/haproxy/openssl-compat.h
index eb96703a560705cbbd130bf3e257fe69aa00e58f..95d924d65359db42654708d2163746f98ede801f 100644 (file)
--- a/include/haproxy/openssl-compat.h
+++ b/include/haproxy/openssl-compat.h
@@ -41,7 +41,7 @@
 #define OpenSSL_version_num     SSLeay
 #endif
 
-#if (LIBRESSL_VERSION_NUMBER >= 0x2070100fL) || defined(OPENSSL_IS_BORINGSSL) || (!defined(LIBRESSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER >= 0x10100000L))
+#if (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER >= 0x2070100fL) || defined(OPENSSL_IS_BORINGSSL) || (!defined(LIBRESSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER >= 0x10100000L))
 #define HAVE_SSL_EXTRACT_RANDOM
 #endif