| cmake_minimum_required (VERSION 2.8.12) |
| if(POLICY CMP0129) |
| cmake_policy(SET CMP0129 NEW) |
| endif() |
| project(TryCompile) |
| |
| macro(EXPECT_PASS var out) |
| if(NOT ${var}) |
| message(SEND_ERROR "Should pass failed:\n${out}") |
| endif() |
| endmacro() |
| |
| macro(EXPECT_FAIL var out) |
| if(${var}) |
| message(SEND_ERROR "Should fail passed:\n${out}") |
| endif() |
| endmacro() |
| |
| macro(EXPECT_COMPILED name var out) |
| if(NOT ${var}) |
| message(SEND_ERROR "${name} failed compiling:\n${out}") |
| endif() |
| endmacro() |
| |
| macro(EXPECT_RUN_RESULT name var expected) |
| if(NOT ${var} EQUAL ${expected}) |
| message(SEND_ERROR " ${name} gave unexpected run result: ${${var}} expected: ${expected}") |
| endif() |
| endmacro() |
| |
| macro(TEST_ASSERT value msg) |
| if (NOT ${value}) |
| message (SEND_ERROR "Assertion failure:" ${msg} ) |
| endif () |
| endmacro() |
| |
| # run old signature tests |
| set(try_compile_bindir_or_SOURCES ${TryCompile_BINARY_DIR}) |
| set(try_compile_redundant_SOURCES SOURCES) |
| set(try_compile_output_vars OUTPUT_VARIABLE TRY_OUT) |
| set(try_compile_compile_output_var TRY_OUT) |
| set(try_compile_run_output_var TRY_OUT) |
| include(old_and_new_signature_tests.cmake) |
| |
| # run new signature tests |
| set(try_compile_bindir_or_SOURCES SOURCES) |
| set(try_compile_redundant_SOURCES "") |
| set(try_compile_output_vars |
| COMPILE_OUTPUT_VARIABLE COMPILE_OUT |
| RUN_OUTPUT_VARIABLE RUN_OUTPUT) |
| set(try_compile_compile_output_var COMPILE_OUT) |
| set(try_compile_run_output_var RUN_OUTPUT) |
| include(old_and_new_signature_tests.cmake) |
| |
| # try to compile an empty source specified directly |
| try_compile(SHOULD_FAIL_DUE_TO_EMPTY_SOURCE |
| SOURCE_FROM_CONTENT empty.c "") |
| if(SHOULD_FAIL_DUE_TO_EMPTY_SOURCE) |
| message(SEND_ERROR "Trying to compile an empty source succeeded?") |
| endif() |
| |
| try_compile(SHOULD_FAIL_DUE_TO_EMPTY_SOURCE |
| SOURCE_FROM_VAR empty.c NAME_OF_A_VAR_THAT_IS_NOT_SET) |
| if(SHOULD_FAIL_DUE_TO_EMPTY_SOURCE) |
| message(SEND_ERROR "Trying to compile an empty source succeeded?") |
| endif() |
| |
| # try to compile a copied source |
| try_compile(SHOULD_PASS |
| SOURCE_FROM_FILE pass.c ${TryCompile_SOURCE_DIR}/pass.c |
| OUTPUT_VARIABLE TRY_OUT) |
| EXPECT_COMPILED("SOURCE_FROM_FILE" SHOULD_PASS "${TRY_OUT}") |
| |
| # try to run a source specified directly |
| set(TRY_RUN_MAIN_CODE |
| "extern int answer(); \n" |
| "int main() { return answer(); }\n") |
| set(TRY_RUN_EXT_CODE |
| "int answer() { return 42; }\n") |
| |
| try_run(SHOULD_EXIT_WITH_ERROR SHOULD_COMPILE |
| SOURCE_FROM_CONTENT main.c "${TRY_RUN_MAIN_CODE}" |
| SOURCE_FROM_CONTENT answer.c "${TRY_RUN_EXT_CODE}" |
| COMPILE_OUTPUT_VARIABLE COMPILE_OUTPUT) |
| EXPECT_COMPILED("SOURCE_FROM_CONTENT" SHOULD_COMPILE "${COMPILE_OUTPUT}") |
| EXPECT_RUN_RESULT("SOURCE_FROM_CONTENT" SHOULD_EXIT_WITH_ERROR 42) |
| |
| try_run(SHOULD_EXIT_WITH_ERROR SHOULD_COMPILE |
| SOURCE_FROM_VAR main.c TRY_RUN_MAIN_CODE |
| SOURCE_FROM_VAR answer.c TRY_RUN_EXT_CODE |
| COMPILE_OUTPUT_VARIABLE COMPILE_OUTPUT) |
| EXPECT_COMPILED("SOURCE_FROM_VAR" SHOULD_COMPILE "${COMPILE_OUTPUT}") |
| EXPECT_RUN_RESULT("SOURCE_FROM_VAR" SHOULD_EXIT_WITH_ERROR 42) |
| |
| # try to compile a project (old signature) |
| message("Testing try_compile project mode (old signature)") |
| try_compile(TEST_INNER |
| ${TryCompile_BINARY_DIR}/CMakeFiles/Inner |
| ${TryCompile_SOURCE_DIR}/Inner |
| TryCompileInner innerexe |
| OUTPUT_VARIABLE output) |
| TEST_ASSERT(TEST_INNER "try_compile project mode failed:\n${output}") |
| |
| # try to compile a project (new signature) |
| message("Testing try_compile project mode (new signature)") |
| try_compile(TEST_INNER |
| PROJECT TryCompileInner |
| SOURCE_DIR ${TryCompile_SOURCE_DIR}/Inner |
| TARGET innerexe |
| OUTPUT_VARIABLE output) |
| TEST_ASSERT(TEST_INNER "try_compile project mode failed:\n${output}") |
| |
| add_executable(TryCompile pass.c) |
| |
| ####################################################################### |
| # |
| # also test that the check_prototype_definition macro works |
| |
| include(CheckPrototypeDefinition) |
| |
| check_prototype_definition(remove |
| "int remove(const char *pathname)" |
| "0" |
| "stdio.h" |
| TEST_REMOVE_PROTO) |
| test_assert(TEST_REMOVE_PROTO "check_prototype_definition for remove() failed") |