cmake: define LUA_INCLUDE_DIR

Follows up the commit 2a58b8a
("rockspec: propagate CMake options").

Author: ligurio

CMakeLists.txt

@@ -23,6 +23,7 @@ if(CMAKE_LUA_INCLUDE_DIR AND CMAKE_LUA_LIBRARIES)
   add_library(liblua STATIC IMPORTED GLOBAL)
   set_target_properties(liblua PROPERTIES
     IMPORTED_LOCATION ${CMAKE_LUA_LIBRARIES})
+  set(LUA_INCLUDE_DIR ${CMAKE_LUA_INCLUDE_DIR})
   set(LUA_LIBRARIES liblua)
   set(LUA_FOUND TRUE)
 elseif(ENABLE_LUAJIT)

luzer-scm-1.rockspec

@@ -31,6 +31,8 @@ build = {
         CMAKE_CXX_COMPILER = "clang++",
         CMAKE_LIBDIR = "$(LIBDIR)",
         CMAKE_LUADIR = "$(LUADIR)",
+        CMAKE_LUA_INCLUDE_DIR = "$(LUA_INCLUDE_DIR)",
+        CMAKE_LUA_LIBRARIES = "$(LUA_LIBRARIES)",
         ENABLE_LUAJIT = "$(ENABLE_LUAJIT)",
         LUAJIT_FRIENDLY_MODE = "$(LUAJIT_FRIENDLY_MODE)",
         OSS_FUZZ = "$(OSS_FUZZ)",