From 0bbcbb72070d7f61b5d6e70093e3ccfdc7d091fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C5=99emysl=20Eric=20Janouch?= <p@janouch.name>
Date: Tue, 9 Apr 2024 20:47:01 +0200
Subject: Fix build on Alpine

---
 hex.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'hex.c')

diff --git a/hex.c b/hex.c
index 33aaeb8..0874613 100644
--- a/hex.c
+++ b/hex.c
@@ -71,6 +71,12 @@ enum
 #include <lua.h>
 #include <lualib.h>
 #include <lauxlib.h>
+
+// This test is too annoying to do in CMake due to CheckTypeSize() being unable
+// to take link_directories(), and the Lua constant is documented.
+#if LUA_MAXINTEGER < INT64_MAX
+#error Lua must have at least 64-bit integers
+#endif
 #endif // WITH_LUA
 
 #define APP_TITLE  PROGRAM_NAME         ///< Left top corner
-- 
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