diff options
Diffstat (limited to 'cmake/FindCcache.cmake')
| -rw-r--r-- | cmake/FindCcache.cmake | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/cmake/FindCcache.cmake b/cmake/FindCcache.cmake index a0734a312..164ddf601 100644 --- a/cmake/FindCcache.cmake +++ b/cmake/FindCcache.cmake @@ -42,12 +42,19 @@ find_program(CCACHE_FOUND ccache) if (CCACHE_FOUND) # Try to compile a test program with ccache, in order to verify if it really works. (needed on exotic setups) - # Create a temporary file with a simple program. - set(TEMP_CPP_FILE "${CMAKE_BINARY_DIR}/${CMAKE_FILES_DIRECTORY}/CMakeTmp/test-program.cpp") - file(WRITE "${TEMP_CPP_FILE}" "int main() { return 0; }") - # And run the found ccache on it. - execute_process(COMMAND "${CCACHE_FOUND}" "${CMAKE_CXX_COMPILER}" "${TEMP_CPP_FILE}" RESULT_VARIABLE RET) - if (${RET} EQUAL 0) + set(TEST_PROJECT "${CMAKE_BINARY_DIR}/${CMAKE_FILES_DIRECTORY}/CMakeTmp") + file(WRITE "${TEST_PROJECT}/CMakeLists.txt" [=[ +cmake_minimum_required(VERSION 3.1) +project(test) +option (CCACHE "") +file(WRITE "${CMAKE_SOURCE_DIR}/test.cpp" "int main() { return 0; }") +set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE}") +set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK "${CCACHE}") +add_executable(main test.cpp) +]=]) + try_compile(RET "${TEST_PROJECT}/build" "${TEST_PROJECT}" "test" CMAKE_FLAGS -DCCACHE="${CCACHE_FOUND}") + unset(TEST_PROJECT) + if (${RET}) # Success message(STATUS "Found usable ccache: ${CCACHE_FOUND}") set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_FOUND}") |