From 75bd2bb4b929e5c68fc9cc448cd9e52f4bb5dba8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mat=C4=9Bj=20Cepl?= <mcepl@cepl.eu>
Date: Thu, 26 Feb 2026 18:11:19 +0100
Subject: [PATCH] cmake: turn MODULE_INSTALL_LIB_DIR into a CMake cache entry
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It lets packagers/users override the module install directory via
-DMODULE_INSTALL_LIB_DIR=... while keeping the same default path.

Signed-off-by: Matěj Cepl <mcepl@cepl.eu>
---
 CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 86a5038b..9bf0bf5d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -278,7 +278,8 @@ if (NOT LUA)
     if (WIN32)
       set(MODULE_INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
     else (WIN32)
-      set(MODULE_INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib/lua/${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}")
+      set(MODULE_INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib/lua/${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}"
+        CACHE PATH "Installation directory for module")
     endif (WIN32)
   endif (BUILD_MODULE)
   if (BUILD_STATIC_LIBS)