301 lines
10 KiB
CMake
301 lines
10 KiB
CMake
cmake_minimum_required (VERSION 2.6)
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project(TryCompile)
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macro(TEST_ASSERT value msg)
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if (NOT ${value})
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message (SEND_ERROR "Assertion failure:" ${msg} )
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endif ()
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endmacro()
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macro(TEST_FAIL value msg)
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if (${value})
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message (SEND_ERROR "Failing test succeeded:" ${msg} )
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endif ()
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endmacro()
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macro(TEST_EXPECT_EXACT command expected)
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if(NOT "x${result}" STREQUAL "x${expected}")
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message(SEND_ERROR "${CMAKE_CURRENT_LIST_LINE}: TEST \"${command}\" failed: \"${result}\" expected: \"${expected}\"")
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endif()
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endmacro()
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macro(TEST_EXPECT_CONTAINS command expected)
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if(NOT "${result}" MATCHES "${expected}")
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message(SEND_ERROR "${CMAKE_CURRENT_LIST_LINE}: TEST \"${command}\" failed: \"${result}\" expected: \"${expected}\"")
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endif()
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endmacro()
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# try to compile a file that should compile
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# also check that COPY_FILE works
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try_compile(SHOULD_PASS
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${TryCompile_SOURCE_DIR}/pass.c
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OUTPUT_VARIABLE TRY_OUT
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COPY_FILE ${TryCompile_BINARY_DIR}/CopyOfPass
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)
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if(NOT SHOULD_PASS)
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message(SEND_ERROR "should pass failed ${TRY_OUT}")
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endif()
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if(NOT EXISTS "${TryCompile_BINARY_DIR}/CopyOfPass")
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message(SEND_ERROR "COPY_FILE to \"${TryCompile_BINARY_DIR}/CopyOfPass\" failed")
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else()
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file(REMOVE "${TryCompile_BINARY_DIR}/CopyOfPass")
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endif()
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# try to compile a file that should compile
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# also check that COPY_FILE_ERROR works
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file(WRITE ${TryCompile_BINARY_DIR}/invalid "")
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try_compile(SHOULD_PASS
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${TryCompile_SOURCE_DIR}/pass.c
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OUTPUT_VARIABLE TRY_OUT
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COPY_FILE ${TryCompile_BINARY_DIR}/invalid/path
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COPY_FILE_ERROR _captured
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)
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if(NOT SHOULD_PASS)
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message(SEND_ERROR "should pass failed ${TRY_OUT}")
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endif()
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if(NOT _captured MATCHES "Cannot copy output executable.*/invalid/path")
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message(SEND_ERROR "COPY_FILE_ERROR did not capture expected message")
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endif()
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# try to compile a file that should not compile
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try_compile(SHOULD_FAIL
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${TryCompile_SOURCE_DIR}/fail.c
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OUTPUT_VARIABLE TRY_OUT)
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if(SHOULD_FAIL)
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message(SEND_ERROR "Should fail passed ${TRY_OUT}")
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endif()
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# try to compile a file that should compile
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try_compile(SHOULD_PASS
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${TryCompile_SOURCE_DIR}/pass.c
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OUTPUT_VARIABLE TRY_OUT)
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if(NOT SHOULD_PASS)
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message(SEND_ERROR "should pass failed ${TRY_OUT}")
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endif()
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# try to compile a file that should not compile
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try_compile(SHOULD_FAIL
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${TryCompile_SOURCE_DIR}/fail.c
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OUTPUT_VARIABLE TRY_OUT)
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if(SHOULD_FAIL)
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message(SEND_ERROR "Should fail passed ${TRY_OUT}")
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endif()
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# try to compile two files that should compile
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try_compile(SHOULD_PASS
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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SOURCES ${TryCompile_SOURCE_DIR}/pass2a.c ${TryCompile_SOURCE_DIR}/pass2b.cxx
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OUTPUT_VARIABLE TRY_OUT)
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if(NOT SHOULD_PASS)
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message(SEND_ERROR "should pass failed ${TRY_OUT}")
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endif()
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# try to compile two files that should not compile
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try_compile(SHOULD_FAIL
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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SOURCES ${TryCompile_SOURCE_DIR}/fail2a.c ${TryCompile_SOURCE_DIR}/fail2b.c
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OUTPUT_VARIABLE TRY_OUT)
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if(SHOULD_FAIL)
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message(SEND_ERROR "Should fail passed ${TRY_OUT}")
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endif()
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# try to compile a file that should compile
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set(_c_flags "${CMAKE_C_FLAGS}")
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if(CMAKE_GENERATOR STREQUAL "Visual Studio 6")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D \"TESTDEF\"")
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elseif(WATCOM)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -dTESTDEF")
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else()
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} \"-DTESTDEF\"")
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endif()
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try_compile(SHOULD_PASS
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${TryCompile_SOURCE_DIR}/testdef.c
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OUTPUT_VARIABLE TRY_OUT)
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if(NOT SHOULD_PASS)
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message(SEND_ERROR "should pass failed ${TRY_OUT}")
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endif()
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set(CMAKE_C_FLAGS "${_c_flags}")
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if(NOT SHOULD_FAIL)
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if(SHOULD_PASS)
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message("All Tests passed, ignore all previous output.")
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else()
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message("Test failed")
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endif()
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else()
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message("Test failed")
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endif()
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try_compile(CMAKE_ANSI_FOR_SCOPE
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${CMAKE_ROOT}/Modules/TestForAnsiForScope.cxx OUTPUT_VARIABLE OUT)
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if (CMAKE_ANSI_FOR_SCOPE)
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message("Compiler supports ansi for")
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else()
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message("Compiler does not support ansi for scope")
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endif()
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try_compile(CMAKE_ANSI_FOR_SCOPE
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${CMAKE_ROOT}/Modules/TestForAnsiForScope.cxx OUTPUT_VARIABLE OUT)
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if (CMAKE_ANSI_FOR_SCOPE)
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message("Compiler supports ansi for")
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else()
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message("Compiler does not support ansi for scope")
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endif()
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message("use the module now")
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include(${CMAKE_ROOT}/Modules/TestForANSIForScope.cmake)
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if (CMAKE_ANSI_FOR_SCOPE)
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message("Compiler supports ansi for")
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else()
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message("Compiler does not support ansi for scope")
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endif()
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message("Testing try_compile project mode")
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try_compile(TEST_INNER
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${TryCompile_BINARY_DIR}/CMakeFiles/Inner
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${TryCompile_SOURCE_DIR}/Inner
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TryCompileInner innerexe
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OUTPUT_VARIABLE output)
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TEST_ASSERT(TEST_INNER "try_compile project mode failed:\n${output}")
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add_executable(TryCompile pass.c)
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######################################
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# now two tests for TRY_RUN
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# try to run a file that should compile and run without error
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# also check that OUTPUT_VARIABLE contains both the compile output
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# and the run output
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try_run(SHOULD_RUN SHOULD_COMPILE
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${TryCompile_SOURCE_DIR}/exit_success.c
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OUTPUT_VARIABLE TRY_OUT)
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if(NOT SHOULD_COMPILE)
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message(SEND_ERROR "exit_success failed compiling: ${TRY_OUT}")
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endif()
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if(NOT "${SHOULD_RUN}" STREQUAL "0")
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message(SEND_ERROR "exit_success failed running with exit code ${SHOULD_RUN}")
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endif()
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# check the compile output for the filename
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if(NOT "${TRY_OUT}" MATCHES "exit_success")
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message(SEND_ERROR " TRY_OUT didn't contain \"exit_success\": \"${TRY_OUT}\"")
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endif()
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# check the run output
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if(NOT "${TRY_OUT}" MATCHES "hello world")
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message(SEND_ERROR " TRY_OUT didn't contain \"hello world\": \"${TRY_OUT}\"")
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endif()
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try_run(ARG_TEST_RUN ARG_TEST_COMPILE
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${TryCompile_SOURCE_DIR}/expect_arg.c
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OUTPUT_VARIABLE TRY_OUT
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ARGS arg1 arg2)
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if(NOT ARG_TEST_COMPILE)
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message(SEND_ERROR "expect_arg failed compiling: ${TRY_OUT}")
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endif()
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if(NOT "${ARG_TEST_RUN}" STREQUAL "0")
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message(SEND_ERROR "expect_arg failed running with exit code ${ARG_TEST_RUN} ${TRY_OUT}")
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endif()
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# try to run a file that should compile and run, but return an error
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try_run(SHOULD_EXIT_WITH_ERROR SHOULD_COMPILE
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${TryCompile_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp
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${TryCompile_SOURCE_DIR}/exit_with_error.c
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COMPILE_OUTPUT_VARIABLE COMPILE_OUTPUT
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RUN_OUTPUT_VARIABLE RUN_OUTPUT)
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if(NOT SHOULD_COMPILE)
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message(STATUS " exit_with_error failed compiling: ${COMPILE_OUTPUT}")
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endif()
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if("${SHOULD_EXIT_WITH_ERROR}" STREQUAL "0")
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message(SEND_ERROR " exit_with_error passed with exit code ${SHOULD_EXIT_WITH_ERROR}")
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endif()
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# check the compile output, it should contain the filename
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if(NOT "${COMPILE_OUTPUT}" MATCHES "exit_with_error")
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message(SEND_ERROR " COMPILE_OUT didn't contain \"exit_with_error\": \"${COMPILE_OUTPUT}\"")
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endif()
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#... but not the run time output
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if("${COMPILE_OUTPUT}" MATCHES "hello world")
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message(SEND_ERROR " COMPILE_OUT contains the run output: \"${COMPILE_OUTPUT}\"")
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endif()
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# check the run output, it should stdout
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if(NOT "${RUN_OUTPUT}" MATCHES "hello world")
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message(SEND_ERROR " RUN_OUTPUT didn't contain \"hello world\": \"${RUN_OUTPUT}\"")
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endif()
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#######################################################################
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#
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# also test that the CHECK_C_SOURCE_COMPILES, CHECK_CXX_SOURCE_COMPILES
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# CHECK_C_SOURCE_RUNS and CHECK_CXX_SOURCE_RUNS macros work
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include(CheckCSourceCompiles)
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include(CheckCXXSourceCompiles)
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include(CheckCSourceRuns)
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include(CheckCXXSourceRuns)
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CHECK_C_SOURCE_COMPILES("I dont build" C_BUILD_SHOULD_FAIL)
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CHECK_C_SOURCE_COMPILES("int main() {return 0;}" C_BUILD_SHOULD_WORK)
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CHECK_C_SOURCE_RUNS("int main() {return 1;}" C_RUN_SHOULD_FAIL)
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CHECK_C_SOURCE_RUNS("int main() {return 0;}" C_RUN_SHOULD_WORK)
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TEST_FAIL(C_BUILD_SHOULD_FAIL "CHECK_C_SOURCE_COMPILES() succeeded, but should have failed")
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TEST_ASSERT(C_BUILD_SHOULD_WORK "CHECK_C_SOURCE_COMPILES() failed")
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TEST_FAIL(C_RUN_SHOULD_FAIL "CHECK_C_SOURCE_RUNS() succeeded, but should have failed")
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TEST_ASSERT(C_RUN_SHOULD_WORK "CHECK_C_SOURCE_RUNS() failed")
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CHECK_CXX_SOURCE_COMPILES("I dont build" CXX_BUILD_SHOULD_FAIL)
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CHECK_CXX_SOURCE_COMPILES("int main() {return 0;}" CXX_BUILD_SHOULD_WORK)
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CHECK_CXX_SOURCE_RUNS("int main() {return 2;}" CXX_RUN_SHOULD_FAIL)
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CHECK_CXX_SOURCE_RUNS("int main() {return 0;}" CXX_RUN_SHOULD_WORK)
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TEST_FAIL(CXX_BUILD_SHOULD_FAIL "CHECK_CXX_SOURCE_COMPILES() succeeded, but should have failed")
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TEST_ASSERT(CXX_BUILD_SHOULD_WORK "CHECK_CXX_SOURCE_COMPILES() failed")
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TEST_FAIL(CXX_RUN_SHOULD_FAIL "CHECK_CXX_SOURCE_RUNS() succeeded, but should have failed")
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TEST_ASSERT(CXX_RUN_SHOULD_WORK "CHECK_CXX_SOURCE_RUNS() failed")
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foreach(lang C CXX)
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if(NOT CMAKE_${lang}_COMPILER_ID STREQUAL "PathScale")
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set(${lang}_DD --)
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endif()
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endforeach()
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unset(C_BOGUS_FLAG CACHE)
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include(CheckCCompilerFlag)
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CHECK_C_COMPILER_FLAG(${C_DD}-_this_is_not_a_flag_ C_BOGUS_FLAG)
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TEST_FAIL(C_BOGUS_FLAG "CHECK_C_COMPILER_FLAG() succeeded, but should have failed")
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unset(CXX_BOGUS_FLAG CACHE)
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include(CheckCXXCompilerFlag)
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CHECK_CXX_COMPILER_FLAG(${CXX_DD}-_this_is_not_a_flag_ CXX_BOGUS_FLAG)
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TEST_FAIL(CXX_BOGUS_FLAG "CHECK_CXX_COMPILER_FLAG() succeeded, but should have failed")
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if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
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unset(C_STRICT_PROTOTYPES CACHE)
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CHECK_C_COMPILER_FLAG("-Werror;-Wstrict-prototypes" C_STRICT_PROTOTYPES)
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TEST_ASSERT(C_STRICT_PROTOTYPES "CHECK_C_COMPILER_FLAG failed -Werror -Wstrict-prototypes")
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endif()
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#######################################################################
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#
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# also test that the check_prototype_definition macro works
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include(CheckPrototypeDefinition)
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check_prototype_definition(remove
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"int remove(const char *pathname)"
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"0"
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"stdio.h"
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TEST_REMOVE_PROTO)
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test_assert(TEST_REMOVE_PROTO "check_prototype_definition for remove() failed")
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