Made ccache optional (opt out) and tidied up the FindCcache.cmake

This commit is contained in:
mj-xmr 2020-05-04 09:46:31 +02:00
parent 8185054db7
commit 3843a6aba5
2 changed files with 15 additions and 7 deletions

View File

@ -48,7 +48,12 @@ message(STATUS "CMake version ${CMAKE_VERSION}")
project(monero) project(monero)
include(FindCcache) # Has to be included after the project() macro, to be able to read the CXX variable. option (USE_CCACHE "Use ccache if a usable instance is found" ON)
if (USE_CCACHE)
include(FindCcache) # Has to be included after the project() macro, to be able to read the CXX variable.
else()
message(STATUS "ccache deselected")
endif()
enable_language(C ASM) enable_language(C ASM)

View File

@ -41,17 +41,20 @@
find_program(CCACHE_FOUND ccache) find_program(CCACHE_FOUND ccache)
if (CCACHE_FOUND) if (CCACHE_FOUND)
set(TEMP_CPP_FILE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/test-program.cpp") # 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 "${TEMP_CPP_FILE}" "int main() { return 0; }") file(WRITE "${TEMP_CPP_FILE}" "int main() { return 0; }")
# And run the found ccache on it.
execute_process(COMMAND "${CCACHE_FOUND}" "${CMAKE_CXX_COMPILER}" "${TEMP_CPP_FILE}" RESULT_VARIABLE RET) execute_process(COMMAND "${CCACHE_FOUND}" "${CMAKE_CXX_COMPILER}" "${TEMP_CPP_FILE}" RESULT_VARIABLE RET)
if (${RET} EQUAL 0) if (${RET} EQUAL 0)
message("found usable ccache: ${CCACHE_FOUND}") # Success
message(STATUS "Found usable ccache: ${CCACHE_FOUND}")
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_FOUND}") set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_FOUND}")
set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK "${CCACHE_FOUND}") set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK "${CCACHE_FOUND}")
else() else()
message("found ccache ${CCACHE_FOUND}, but is UNUSABLE! Return code: ${RET}") message(STATUS "Found ccache ${CCACHE_FOUND}, but is UNUSABLE! Return code: ${RET}")
endif() endif()
else() else()
message("ccache NOT found!") message(STATUS "ccache NOT found! Please install it for faster rebuilds.")
endif() endif()