Support newer zmq and Lua versions.

CMakeLists.txt

@@ -1,7 +1,7 @@
 #
 # Lua bindings for 0MQ
 #
-cmake_minimum_required(VERSION 2.8)
+cmake_minimum_required(VERSION 3.18)
 
 project(lua-zmq C)
 
@@ -9,9 +9,9 @@ set(BUILD_SHARED_LIBS TRUE)
 
 set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
 
-set(INSTALL_LMOD ${CMAKE_INSTALL_PREFIX}/share/lua/5.1 CACHE PATH
+set(INSTALL_LMOD ${CMAKE_INSTALL_PREFIX}/share/lua/ CACHE PATH
 				"Directory to install Lua source modules (configure lua via LUA_PATH)")
-set(INSTALL_CMOD ${CMAKE_INSTALL_PREFIX}/lib/lua/5.1 CACHE PATH
+set(INSTALL_CMOD ${CMAKE_INSTALL_PREFIX}/lib/lua/ CACHE PATH
 				"Directory to install Lua binary modules (configure lua via LUA_CPATH)")
 set(ZMQ_PATH "" CACHE PATH
 				"Directory to libzmq. (by default use pkg-config to detect path)")
@@ -20,11 +20,13 @@ set(COMMON_CFLAGS "${CFLAGS}")
 set(COMMON_LDFLAGS)
 set(COMMON_LIBS)
 
-## Lua 5.1.x
-include(FindLua51)
-if(NOT ${LUA51_FOUND})
-	message(FATAL_ERROR "The FindLua51 module could not find lua :-(")
+## Lua 5.x
+include(FindLua)
+if(NOT ${LUA_FOUND})
+    message(FATAL_ERROR "The FindLua module could not find lua :-(")
 endif()
+set(COMMON_LIBS "${COMMON_LIBS};${LUA_LIBRARIES}")
+
 if(WIN32)
 	set(COMMON_CFLAGS "${COMMON_CFLAGS} -I${LUA_INCLUDE_DIR}")
 	set(COMMON_LDFLAGS "${COMMON_LDFLAGS} ${LUA_LIBRARY}")

cmake/LuaNativeObjects.cmake

@@ -2,11 +2,11 @@
 # Lua Native Objects
 #
 
-set(LUA_NATIVE_OBJECTS_PATH ${CMAKE_SOURCE_DIR}/../LuaNativeObjects CACHE PATH
-				"Directory to LuaNativeObjects bindings generator.")
+find_program(LUA_NATIVE_OBJECTS_EXECUTABLE native_objects.lua
+	PATHS ${CMAKE_SOURCE_DIR}/../LuaNativeObjects
+	DOC "LuaNativeObjects executable path")
 set(USE_PRE_GENERATED_BINDINGS TRUE CACHE BOOL
 				"Set this to FALSE to re-generate bindings using LuaNativeObjects")
-
 set(GENERATE_LUADOCS TRUE CACHE BOOL
 				"Set this to FALSE to avoid generation of docs using LuaDoc")
 
@@ -17,7 +17,7 @@ macro(GenLuaNativeObjects _src_files_var)
 			string(REGEX REPLACE ".nobj.lua" ".nobj.c" _src_file_out ${_src_file})
 			string(REGEX REPLACE ".nobj.lua" ".nobj.ffi.lua" _ffi_file_out ${_src_file})
 			add_custom_command(OUTPUT ${_src_file_out} ${_ffi_file_out}
-				COMMAND lua ${LUA_NATIVE_OBJECTS_PATH}/native_objects.lua -outpath ${CMAKE_CURRENT_BINARY_DIR} -gen lua ${_src_file}
+				COMMAND ${LUA_NATIVE_OBJECTS_EXECUTABLE} -outpath ${CMAKE_CURRENT_BINARY_DIR} -gen lua ${_src_file}
 				WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 				DEPENDS ${_src_file}
 			)
@@ -27,7 +27,7 @@ macro(GenLuaNativeObjects _src_files_var)
 				string(REGEX REPLACE ".nobj.lua" "" _doc_base ${_src_file})
 				string(REGEX REPLACE ".nobj.lua" ".luadoc" _doc_file_out ${_src_file})
 				add_custom_target(${_doc_file_out} ALL
-					COMMAND lua ${LUA_NATIVE_OBJECTS_PATH}/native_objects.lua -outpath docs -gen luadoc ${_src_file}
+					COMMAND ${LUA_NATIVE_OBJECTS_EXECUTABLE} -outpath docs -gen luadoc ${_src_file}
 					COMMAND luadoc -nofiles -d docs docs
 					WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 					DEPENDS ${_src_file}

src/socket.nobj.lua

@@ -608,7 +608,7 @@ end
 #if VERSION_3_0 || VERSION_4_0
 	/* 3.0 backwards compatibility support for HWM. */
 	if(${opt} == ZMQ_HWM) {
-		int_val = luaL_checklong(L, ${val::idx});
+		int_val = luaL_checkinteger(L, ${val::idx});
 		val = &int_val;
 		val_len = sizeof(int_val);
 		${err} = zmq_setsockopt(${this}, ZMQ_SNDHWM, val, val_len);
@@ -626,28 +626,28 @@ end
 	switch(opt_types[${opt}]) {
 #if VERSION_2_1 || VERSION_3_0 || VERSION_4_0
 	case OPT_TYPE_FD:
-		fd_val = luaL_checklong(L, ${val::idx});
+		fd_val = luaL_checkinteger(L, ${val::idx});
 		val = &fd_val;
 		val_len = sizeof(fd_val);
 		break;
 #endif
 	case OPT_TYPE_INT:
-		int_val = luaL_checklong(L, ${val::idx});
+		int_val = luaL_checkinteger(L, ${val::idx});
 		val = &int_val;
 		val_len = sizeof(int_val);
 		break;
 	case OPT_TYPE_UINT32:
-		uint32_val = luaL_checklong(L, ${val::idx});
+		uint32_val = luaL_checkinteger(L, ${val::idx});
 		val = &uint32_val;
 		val_len = sizeof(uint32_val);
 		break;
 	case OPT_TYPE_UINT64:
-		uint64_val = luaL_checklong(L, ${val::idx});
+		uint64_val = luaL_checkinteger(L, ${val::idx});
 		val = &uint64_val;
 		val_len = sizeof(uint64_val);
 		break;
 	case OPT_TYPE_INT64:
-		int64_val = luaL_checklong(L, ${val::idx});
+		int64_val = luaL_checkinteger(L, ${val::idx});
 		val = &int64_val;
 		val_len = sizeof(int64_val);
 		break;