+ *
+ * Other macros, which can be defined (with a non-zero value):
+ *
+ * SERVER_PROFILE_MIN_FS
+ * Select a "minimal" profile with forward security (ECDHE cipher
+ * suite).
+ *
+ * SERVER_PROFILE_MIN_NOFS
+ * Select a "minimal" profile without forward security (RSA or ECDH
+ * cipher suite, but not ECDHE).
+ *
+ * SERVER_CHACHA20
+ * If SERVER_PROFILE_MIN_FS is selected, then this macro selects
+ * a cipher suite with ChaCha20+Poly1305; otherwise, AES/GCM is
+ * used. This macro has no effect otherwise, since there is no
+ * non-forward secure cipher suite that uses ChaCha20+Poly1305.