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-rw-r--r--CMakeLists.txt7
-rw-r--r--cmake/FindCcache.cmake15
2 files changed, 15 insertions, 7 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 45a6aa1b5..1885dee67 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,7 +48,12 @@ message(STATUS "CMake version ${CMAKE_VERSION}")
project(monero)
-include(FindCcache) # Has to be included after the project() macro, to be able to read the CXX variable.
+option (USE_CCACHE "Use ccache if a usable instance is found" ON)
+if (USE_CCACHE)
+ include(FindCcache) # Has to be included after the project() macro, to be able to read the CXX variable.
+else()
+ message(STATUS "ccache deselected")
+endif()
enable_language(C ASM)
diff --git a/cmake/FindCcache.cmake b/cmake/FindCcache.cmake
index fa357610b..a0734a312 100644
--- a/cmake/FindCcache.cmake
+++ b/cmake/FindCcache.cmake
@@ -41,17 +41,20 @@
find_program(CCACHE_FOUND ccache)
if (CCACHE_FOUND)
- set(TEMP_CPP_FILE "${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; }")
+ # 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)
- 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_LINK "${CCACHE_FOUND}")
else()
- message("found ccache ${CCACHE_FOUND}, but is UNUSABLE! Return code: ${RET}")
- endif()
+ message(STATUS "Found ccache ${CCACHE_FOUND}, but is UNUSABLE! Return code: ${RET}")
+ endif()
else()
- message("ccache NOT found!")
+ message(STATUS "ccache NOT found! Please install it for faster rebuilds.")
endif()
-