--- lua-5.4.6/src/lauxlib.h	2023-05-02 22:02:28.000000000 +0200
+++ lua-5.4.6/src/lauxlib.h.new	2023-10-02 22:24:14.018899755 +0200
@@ -8,6 +8,9 @@
 #ifndef lauxlib_h
 #define lauxlib_h
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #include <stddef.h>
 #include <stdio.h>
@@ -294,7 +297,9 @@
 #endif
 /* }============================================================ */
 
-
+#ifdef __cplusplus
+}
+#endif
 
 #endif
 
--- lua-5.4.6/src/lua.h	2023-05-02 22:02:30.000000000 +0200
+++ lua-5.4.6/src/lua.h.new	2023-10-02 22:25:46.666545597 +0200
@@ -9,6 +9,10 @@
 #ifndef lua_h
 #define lua_h
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdarg.h>
 #include <stddef.h>
 
@@ -519,5 +523,8 @@
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 ******************************************************************************/
 
+#ifdef __cplusplus
+}
+#endif
 
 #endif
--- lua-5.4.6/src/lualib.h	2023-05-02 22:02:30.000000000 +0200
+++ lua-5.4.6/src/lualib.h.new	2023-10-02 22:28:07.547172506 +0200
@@ -8,6 +8,10 @@
 #ifndef lualib_h
 #define lualib_h
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include "lua.h"
 
 
@@ -48,5 +52,8 @@
 /* open all previous libraries */
 LUALIB_API void (luaL_openlibs) (lua_State *L);
 
+#ifdef __cplusplus
+}
+#endif
 
 #endif
--- lua-5.4.6/src/luaconf.h	2023-05-02 22:02:30.000000000 +0200
+++ lua-5.4.6/src/luaconf.h.new	2023-10-02 22:30:32.600468200 +0200
@@ -223,7 +223,7 @@
 
 #else			/* }{ */
 
-#define LUA_ROOT	"/usr/local/"
+#define LUA_ROOT	"/usr/"
 #define LUA_LDIR	LUA_ROOT "share/lua/" LUA_VDIR "/"
 #define LUA_CDIR	LUA_ROOT "lib/lua/" LUA_VDIR "/"
 
@@ -313,7 +313,7 @@
 */
 #if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
     defined(__ELF__)		/* { */
-#define LUAI_FUNC	__attribute__((visibility("internal"))) extern
+#define LUAI_FUNC	extern
 #else				/* }{ */
 #define LUAI_FUNC	extern
 #endif				/* } */