2 files changed, 2 insertions, 2 deletions
diff --git a/wscript b/wscript
index 0a8626b..135dd77 100644
--- a/wscript
+++ b/wscript
@@ -51,7 +51,6 @@ def configure(conf):
                 '-Wno-reserved-id-macro',
                 '-Wno-shorten-64-to-32',
                 '-Wno-sign-conversion',
-                '-Wno-unused-variable',
             ],
             'gcc': [
                 '-Wno-bad-function-cast',
@@ -66,7 +65,6 @@ def configure(conf):
                 '-Wno-suggest-attribute=const',
                 '-Wno-suggest-attribute=format',
                 '-Wno-suggest-attribute=pure',
-                '-Wno-unused-variable',
             ],
             'msvc': [
                 '/wd4191',  # unsafe function conversion
diff --git a/zix/trie.c b/zix/trie.c
index 369b647..aa323c0 100644
--- a/zix/trie.c
+++ b/zix/trie.c
@@ -266,6 +266,7 @@ trie_insert_internal(ZixTrieNode**  n_ptr,
 				ZixTrieNode** c = trie_insert_tail(n_ptr, str, first, len);
 				assert(zix_trie_node_check(*n_ptr));
 				assert(zix_trie_node_check(*c));
+				(void)c;
 				return ZIX_STATUS_SUCCESS;
 			} else {
 				/* Match at this node, continue search downwards (or match) */
@@ -292,6 +293,7 @@ trie_insert_internal(ZixTrieNode**  n_ptr,
 	ZixTrieNode** c = trie_insert_tail(n_ptr, str, first, len);
 	assert(zix_trie_node_check(*n_ptr));
 	assert(zix_trie_node_check(*c));
+	(void)c;
 	return ZIX_STATUS_SUCCESS;
 }