diff --git a/include/goldilocks.h b/include/goldilocks.h
index 7043809..2c3919c 100644
--- a/include/goldilocks.h
+++ b/include/goldilocks.h
@@ -17,6 +17,11 @@
 #define GOLDI_IMPLEMENT_PRECOMPUTED_KEYS 1
 #endif
 
+#ifndef GOLDI_IMPLEMENT_SIGNATURES
+/** If nonzero, implement signatures. */
+#define GOLDI_IMPLEMENT_SIGNATURES 1
+#endif
+
 /** The size of the Goldilocks field, in bits. */
 #define GOLDI_FIELD_BITS          448
 
@@ -207,7 +212,7 @@ goldilocks_shared_secret (
     const struct goldilocks_public_key_t *your_pubkey
 ) __attribute__((warn_unused_result,nonnull(1,2,3),visibility ("default")));
 
-#ifdef GOLDI_IMPLEMENT_SIGNATURES
+#if GOLDI_IMPLEMENT_SIGNATURES
 /**
  * @brief Sign a message.
  *
diff --git a/src/goldilocks.c b/src/goldilocks.c
index af70d1c..94ba665 100644
--- a/src/goldilocks.c
+++ b/src/goldilocks.c
@@ -306,7 +306,7 @@ goldilocks_shared_secret (
     );
 }
 
-#ifdef GOLDI_IMPLEMENT_SIGNATURES
+#if GOLDI_IMPLEMENT_SIGNATURES
 static void
 goldilocks_derive_challenge(
     word_t challenge[GOLDI_FIELD_WORDS],
diff --git a/src/include/config.h b/src/include/config.h
index 4a98087..bf5e384 100644
--- a/src/include/config.h
+++ b/src/include/config.h
@@ -65,7 +65,7 @@
  * @brief Whether or not to define and implement functions
  * working with pre-computed keys.
  */
-#define GOLDI_IMPLEMENT_PRECOMPUTED_KEYS 0
+#define GOLDI_IMPLEMENT_PRECOMPUTED_KEYS 1
 
 /**
  * @brief ECDH adds public keys into the hash, to prevent
diff --git a/src/include/intrinsics.h b/src/include/intrinsics.h
index 46df9da..88e90d0 100644
--- a/src/include/intrinsics.h
+++ b/src/include/intrinsics.h
@@ -19,7 +19,7 @@
 
 /** @brief Macro to make a function static, forcibly inlined and possibly unused. */
 #define INTRINSIC \
-  static inline __attribute__((__gnu_inline__, __always_inline__))
+  static __inline__ __attribute__((__gnu_inline__, __always_inline__, unused))
 
 #define GEN    1     /**< @brief Intrinsics field has been generated. */
 #define SSE2   2     /**< @brief Machine supports SSE2 */