cyassl: define build macros before including ssl.h

cyassl/ssl.h needs the macros from cyassl/options.h, so define them
before including cyassl/ssl.h the first time, which happens in
urldata.h.
This broke the build on Ubuntu Xenial, which comes with WolfSSL 3.4.8
and therefore redefines the symbols from cyassl/options.h instead of
including the header.

Closes https://github.com/curl/curl/pull/1536

diff --git a/lib/vtls/cyassl.c b/lib/vtls/cyassl.c
index 5f51ad5f99c50592d737991751a0fbeac79a8563..01bfdabd1d09243824c6a33af36d15807cd356d4 100644 (file)
--- a/lib/vtls/cyassl.c
+++ b/lib/vtls/cyassl.c
@@ -44,6 +44,38 @@ and that's a problem since options.h hasn't been included yet. */
 #include <cyassl/options.h>
 #endif
 
+/* To determine what functions are available we rely on one or both of:
+   - the user's options.h generated by CyaSSL/wolfSSL
+   - the symbols detected by curl's configure
+   Since they are markedly different from one another, and one or the other may
+   not be available, we do some checking below to bring things in sync. */
+
+/* HAVE_ALPN is wolfSSL's build time symbol for enabling ALPN in options.h. */
+#ifndef HAVE_ALPN
+#ifdef HAVE_WOLFSSL_USEALPN
+#define HAVE_ALPN
+#endif
+#endif
+
+/* WOLFSSL_ALLOW_SSLV3 is wolfSSL's build time symbol for enabling SSLv3 in
+   options.h, but is only seen in >= 3.6.6 since that's when they started
+   disabling SSLv3 by default. */
+#ifndef WOLFSSL_ALLOW_SSLV3
+#if (LIBCYASSL_VERSION_HEX < 0x03006006) || \
+    defined(HAVE_WOLFSSLV3_CLIENT_METHOD)
+#define WOLFSSL_ALLOW_SSLV3
+#endif
+#endif
+
+/* HAVE_SUPPORTED_CURVES is wolfSSL's build time symbol for enabling the ECC
+   supported curve extension in options.h. Note ECC is enabled separately. */
+#ifndef HAVE_SUPPORTED_CURVES
+#if defined(HAVE_CYASSL_CTX_USESUPPORTEDCURVE) || \
+    defined(HAVE_WOLFSSL_CTX_USESUPPORTEDCURVE)
+#define HAVE_SUPPORTED_CURVES
+#endif
+#endif
+
 #ifdef HAVE_LIMITS_H
 #include <limits.h>
 #endif
@@ -78,38 +110,6 @@ and that's a problem since options.h hasn't been included yet. */
 #define CYASSL_MAX_ERROR_SZ 80
 #endif
 
-/* To determine what functions are available we rely on one or both of:
-   - the user's options.h generated by CyaSSL/wolfSSL
-   - the symbols detected by curl's configure
-   Since they are markedly different from one another, and one or the other may
-   not be available, we do some checking below to bring things in sync. */
-
-/* HAVE_ALPN is wolfSSL's build time symbol for enabling ALPN in options.h. */
-#ifndef HAVE_ALPN
-#ifdef HAVE_WOLFSSL_USEALPN
-#define HAVE_ALPN
-#endif
-#endif
-
-/* WOLFSSL_ALLOW_SSLV3 is wolfSSL's build time symbol for enabling SSLv3 in
-   options.h, but is only seen in >= 3.6.6 since that's when they started
-   disabling SSLv3 by default. */
-#ifndef WOLFSSL_ALLOW_SSLV3
-#if (LIBCYASSL_VERSION_HEX < 0x03006006) || \
-    defined(HAVE_WOLFSSLV3_CLIENT_METHOD)
-#define WOLFSSL_ALLOW_SSLV3
-#endif
-#endif
-
-/* HAVE_SUPPORTED_CURVES is wolfSSL's build time symbol for enabling the ECC
-   supported curve extension in options.h. Note ECC is enabled separately. */
-#ifndef HAVE_SUPPORTED_CURVES
-#if defined(HAVE_CYASSL_CTX_USESUPPORTEDCURVE) || \
-    defined(HAVE_WOLFSSL_CTX_USESUPPORTEDCURVE)
-#define HAVE_SUPPORTED_CURVES
-#endif
-#endif
-
 static Curl_recv cyassl_recv;
 static Curl_send cyassl_send;