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Diffstat (limited to 'cmake/modules/buildtools/FindCCache.cmake')
| -rw-r--r-- | cmake/modules/buildtools/FindCCache.cmake | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/cmake/modules/buildtools/FindCCache.cmake b/cmake/modules/buildtools/FindCCache.cmake new file mode 100644 index 0000000..34238dc --- /dev/null +++ b/cmake/modules/buildtools/FindCCache.cmake @@ -0,0 +1,38 @@ +#.rst: +# FindCCache +# ---------- +# Finds ccache and sets it up as compiler wrapper. +# This should ideally be called before the call to project(). +# +# See: https://crascit.com/2016/04/09/using-ccache-with-cmake/ + +find_program(CCACHE_PROGRAM ccache) + +if(CCACHE_PROGRAM) + execute_process(COMMAND "${CCACHE_PROGRAM}" --version + OUTPUT_VARIABLE CCACHE_VERSION + OUTPUT_STRIP_TRAILING_WHITESPACE) + string(REGEX MATCH "[^\n]* version [^\n]*" CCACHE_VERSION "${CCACHE_VERSION}") + string(REGEX REPLACE ".* version (.*)" "\\1" CCACHE_VERSION "${CCACHE_VERSION}") +endif() + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(CCache REQUIRED_VARS CCACHE_PROGRAM + VERSION_VAR CCACHE_VERSION) + +if(CCACHE_FOUND) + # Supports Unix Makefiles, Ninja and Xcode + set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}" CACHE STRING "" FORCE) + set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_PROGRAM}" CACHE STRING "" FORCE) + + file(WRITE "${CMAKE_BINARY_DIR}/launch-c" "#!/bin/sh\nexec \"${CCACHE_PROGRAM}\" \"${CMAKE_C_COMPILER}\" \"$@\"\n") + file(WRITE "${CMAKE_BINARY_DIR}/launch-cxx" "#!/bin/sh\nexec \"${CCACHE_PROGRAM}\" \"${CMAKE_CXX_COMPILER}\" \"$@\"\n") + execute_process(COMMAND chmod +x "${CMAKE_BINARY_DIR}/launch-c" "${CMAKE_BINARY_DIR}/launch-cxx") + + set(CMAKE_XCODE_ATTRIBUTE_CC "${CMAKE_BINARY_DIR}/launch-c" PARENT_SCOPE) + set(CMAKE_XCODE_ATTRIBUTE_CXX "${CMAKE_BINARY_DIR}/launch-cxx" PARENT_SCOPE) + set(CMAKE_XCODE_ATTRIBUTE_LD "${CMAKE_BINARY_DIR}/launch-c" PARENT_SCOPE) + set(CMAKE_XCODE_ATTRIBUTE_LDPLUSPLUS "${CMAKE_BINARY_DIR}/launch-cxx" PARENT_SCOPE) +endif() + +mark_as_advanced(CCACHE_PROGRAM) |