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#.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)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(CCache REQUIRED_VARS CCACHE_PROGRAM)
if(CCACHE_FOUND)
# Supports Unix Makefiles, Ninja and Xcode
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK "${CCACHE_PROGRAM}")
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()
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