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1project(lws-minimal-http-server-deaddrop)
2cmake_minimum_required(VERSION 2.8)
3include(CheckCSourceCompiles)
4
5set(SAMP lws-minimal-http-server-deaddrop)
6set(SRCS minimal-http-server-deaddrop.c)
7
8# NOTE... if you are building this standalone, you must point LWS_PLUGINS_DIR
9# to the lws plugins dir so it can pick up the plugin source.  Eg,
10# cmake . -DLWS_PLUGINS_DIR=~/libwebsockets/plugins
11
12# If we are being built as part of lws, confirm current build config supports
13# reqconfig, else skip building ourselves.
14#
15# If we are being built externally, confirm installed lws was configured to
16# support reqconfig, else error out with a helpful message about the problem.
17#
18MACRO(require_lws_config reqconfig _val result)
19
20	if (DEFINED ${reqconfig})
21	if (${reqconfig})
22		set (rq 1)
23	else()
24		set (rq 0)
25	endif()
26	else()
27		set(rq 0)
28	endif()
29
30	if (${_val} EQUAL ${rq})
31		set(SAME 1)
32	else()
33		set(SAME 0)
34	endif()
35
36	if (LWS_WITH_MINIMAL_EXAMPLES AND NOT ${SAME})
37		if (${_val})
38			message("${SAMP}: skipping as lws being built without ${reqconfig}")
39		else()
40			message("${SAMP}: skipping as lws built with ${reqconfig}")
41		endif()
42		set(${result} 0)
43	else()
44		if (LWS_WITH_MINIMAL_EXAMPLES)
45			set(MET ${SAME})
46		else()
47			CHECK_C_SOURCE_COMPILES("#include <libwebsockets.h>\nint main(void) {\n#if defined(${reqconfig})\n return 0;\n#else\n fail;\n#endif\n return 0;\n}\n" HAS_${reqconfig})
48			if (NOT DEFINED HAS_${reqconfig} OR NOT HAS_${reqconfig})
49				set(HAS_${reqconfig} 0)
50			else()
51				set(HAS_${reqconfig} 1)
52			endif()
53			if ((HAS_${reqconfig} AND ${_val}) OR (NOT HAS_${reqconfig} AND NOT ${_val}))
54				set(MET 1)
55			else()
56				set(MET 0)
57			endif()
58		endif()
59		if (NOT MET)
60			if (${_val})
61				message(FATAL_ERROR "This project requires lws must have been configured with ${reqconfig}")
62			else()
63				message(FATAL_ERROR "Lws configuration of ${reqconfig} is incompatible with this project")
64			endif()
65		endif()
66	endif()
67ENDMACRO()
68
69set(requirements 1)
70require_lws_config(LWS_ROLE_H1 1 requirements)
71require_lws_config(LWS_ROLE_WS 1 requirements)
72require_lws_config(LWS_WITH_SERVER 1 requirements)
73require_lws_config(LWS_WITH_HTTP_BASIC_AUTH 1 requirements)
74
75if (requirements)
76	add_executable(${SAMP} ${SRCS})
77
78	if (LWS_PLUGINS_DIR)
79		include_directories(${LWS_PLUGINS_DIR})
80	endif()
81
82	if (websockets_shared)
83		target_link_libraries(${SAMP} websockets_shared)
84		add_dependencies(${SAMP} websockets_shared)
85	else()
86		target_link_libraries(${SAMP} websockets)
87	endif()
88endif()
89