cmake: build Lua module only if enabled
[oweals/uci.git] / lua / CMakeLists.txt
1 cmake_minimum_required(VERSION 2.6)
2
3 PROJECT(uci C)
4
5 SET(CMAKE_INSTALL_PREFIX /)
6
7 IF(NOT LUA_CFLAGS)
8         INCLUDE(FindPkgConfig)
9         pkg_search_module(LUA lua5.1 lua-5.1)
10 ENDIF()
11
12 ADD_DEFINITIONS(-Os -Wall -Werror --std=gnu99 -g3 -I.. ${LUA_CFLAGS})
13 LINK_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/..)
14
15 IF(APPLE)
16   INCLUDE_DIRECTORIES(/opt/local/include)
17   LINK_DIRECTORIES(/opt/local/lib)
18   SET(CMAKE_SHARED_MODULE_CREATE_C_FLAGS "${CMAKE_SHARED_MODULE_CREATE_C_FLAGS} -undefined dynamic_lookup")
19 ENDIF()
20
21 IF(NOT LUAPATH)
22         EXECUTE_PROCESS(
23                 COMMAND  lua -e "for k in string.gmatch(package.cpath .. \";\", \"([^;]+)/..so;\") do if k:sub(1,1) == \"/\" then print(k) break end end"
24                 OUTPUT_VARIABLE LUAPATH
25                 RESULT_VARIABLE LUA_CHECK_RES
26                 OUTPUT_STRIP_TRAILING_WHITESPACE
27         )
28
29         IF(NOT ${LUA_CHECK_RES} EQUAL 0 OR "${LUAPATH}" EQUAL "")
30                 MESSAGE(SEND_ERROR "Lua was not found on your system")
31         ENDIF()
32 ENDIF()
33
34 ADD_LIBRARY(uci_lua MODULE uci.c)
35 SET_TARGET_PROPERTIES(uci_lua PROPERTIES
36         OUTPUT_NAME uci
37         PREFIX ""
38 )
39 TARGET_LINK_LIBRARIES(uci_lua uci dl)
40
41 INSTALL(TARGETS uci_lua
42         LIBRARY DESTINATION ${LUAPATH}
43 )