| cmake_minimum_required(VERSION 2.8) |
| include(CheckCSourceCompiles) |
| |
| set(SAMP lws-minimal-http-server-custom-headers) |
| set(SRCS minimal-http-server-custom-headers.c) |
| |
| # If we are being built as part of lws, confirm current build config supports |
| # reqconfig, else skip building ourselves. |
| # |
| # If we are being built externally, confirm installed lws was configured to |
| # support reqconfig, else error out with a helpful message about the problem. |
| # |
| MACRO(require_lws_config reqconfig _val result) |
| |
| if (DEFINED ${reqconfig}) |
| if (${reqconfig}) |
| set (rq 1) |
| else() |
| set (rq 0) |
| endif() |
| else() |
| set(rq 0) |
| endif() |
| |
| if (${_val} EQUAL ${rq}) |
| set(SAME 1) |
| else() |
| set(SAME 0) |
| endif() |
| |
| if (LWS_WITH_MINIMAL_EXAMPLES AND NOT ${SAME}) |
| if (${_val}) |
| message("${SAMP}: skipping as lws being built without ${reqconfig}") |
| else() |
| message("${SAMP}: skipping as lws built with ${reqconfig}") |
| endif() |
| set(${result} 0) |
| else() |
| if (LWS_WITH_MINIMAL_EXAMPLES) |
| set(MET ${SAME}) |
| else() |
| CHECK_C_SOURCE_COMPILES("#include <libwebsockets.h>\nint main(void) {\n#if defined(${reqconfig})\n return 0;\n#else\n fail;\n#endif\n return 0;\n}\n" HAS_${reqconfig}) |
| if (NOT DEFINED HAS_${reqconfig} OR NOT HAS_${reqconfig}) |
| set(HAS_${reqconfig} 0) |
| else() |
| set(HAS_${reqconfig} 1) |
| endif() |
| if ((HAS_${reqconfig} AND ${_val}) OR (NOT HAS_${reqconfig} AND NOT ${_val})) |
| set(MET 1) |
| else() |
| set(MET 0) |
| endif() |
| endif() |
| if (NOT MET) |
| if (${_val}) |
| message(FATAL_ERROR "This project requires lws must have been configured with ${reqconfig}") |
| else() |
| message(FATAL_ERROR "Lws configuration of ${reqconfig} is incompatible with this project") |
| endif() |
| endif() |
| endif() |
| ENDMACRO() |
| |
| set(requirements 1) |
| require_lws_config(LWS_ROLE_H1 1 requirements) |
| require_lws_config(LWS_WITH_CUSTOM_HEADERS 1 requirements) |
| require_lws_config(LWS_WITHOUT_SERVER 0 requirements) |
| |
| if (requirements) |
| add_executable(${SAMP} ${SRCS}) |
| |
| if (websockets_shared) |
| target_link_libraries(${SAMP} websockets_shared) |
| add_dependencies(${SAMP} websockets_shared) |
| else() |
| target_link_libraries(${SAMP} websockets) |
| endif() |
| endif() |