Make sure we get the definition of OPENSSL_NO_ECDSA.

crypto/ecdsa/ecdsa.h

@@ -55,6 +55,8 @@
 #ifndef HEADER_ECDSA_H
 #define HEADER_ECDSA_H
 
+#include <openssl/opensslconf.h>
+
 #ifdef OPENSSL_NO_ECDSA
 #error ECDSA is disabled.
 #endif

crypto/ecdsa/ecdsatest.c

@@ -79,6 +79,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <openssl/opensslconf.h> /* To see if OPENSSL_NO_ECDSA is defined */
+
 #ifdef OPENSSL_NO_ECDSA
 int main(int argc, char * argv[])
 	{