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Support ccache when compiling Verilator with CMake (#4678)

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Anthony Donlon 2023-11-10 02:05:36 +00:00 committed by GitHub
parent ab06ace1f6
commit 6566e853cd
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1 changed files with 21 additions and 0 deletions
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21
CMakeLists.txt
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@ -48,6 +48,27 @@ if (WIN32)
set(CMAKE_CXX_STANDARD 20)
endif()
set(OBJCACHE "" CACHE STRING "Path for ccache, auto-detected if empty")
option(OBJCACHE_ENABLED "Compile Verilator with ccache" ON)
if (OBJCACHE_ENABLED)
if (OBJCACHE STREQUAL "")
find_program(OBJCACHE_PATH ccache)
if (OBJCACHE_PATH STREQUAL "OBJCACHE_PATH-NOTFOUND")
set(OBJCACHE_PATH "")
endif()
else()
set(OBJCACHE_PATH "${OBJCACHE}")
endif()
if (NOT OBJCACHE_PATH STREQUAL "")
execute_process(COMMAND "${OBJCACHE_PATH}" --version
OUTPUT_VARIABLE objcache_version)
string(REGEX MATCH "[^\n\r]+" objcache_version "${objcache_version}")
message(STATUS "Found ccache: ${OBJCACHE_PATH} (\"${objcache_version}\")")
set(CMAKE_CXX_COMPILER_LAUNCHER "${OBJCACHE_PATH}")
endif()
endif()
find_package(BISON)
find_package(FLEX)