From 7cddd64b3131812b82feffe2deb311bf6ab9a262 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Sat, 8 Jun 2024 12:38:27 -0400
Subject: build: Add -Wmissing-variable-declarations

---
 build/flags.mk | 1 +
 tests/trie.c   | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/build/flags.mk b/build/flags.mk
index c50b077..e0d67d5 100644
--- a/build/flags.mk
+++ b/build/flags.mk
@@ -90,6 +90,7 @@ CFLAGS ?= \
     -Werror=implicit \
     -Wimplicit-fallthrough \
     -Wmissing-declarations \
+    -Wmissing-variable-declarations \
     -Wshadow \
     -Wsign-compare \
     -Wstrict-prototypes
diff --git a/tests/trie.c b/tests/trie.c
index 4667322..ebaae5d 100644
--- a/tests/trie.c
+++ b/tests/trie.c
@@ -8,7 +8,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-const char *keys[] = {
+static const char *keys[] = {
 	"foo",
 	"bar",
 	"baz",
@@ -37,7 +37,7 @@ const char *keys[] = {
 	">>>",
 };
 
-const size_t nkeys = countof(keys);
+static const size_t nkeys = countof(keys);
 
 bool check_trie(void) {
 	bool ret = true;
-- 
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