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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 3.11)
# store all variables passed on the command line into CL_ARGS so we can pass them to the stage builds
# https://stackoverflow.com/a/48555098/161659
# MUST be done before call to 'project'
# Use standard release build (discarding LEAN_CXX_EXTRA_FLAGS etc.) for stage0 by default since it is assumed to be "good", but still pass through CMake platform arguments (compiler, toolchain file, ..).
# Use `STAGE0_` prefix to pass variables to stage0 explicitly.
get_cmake_property(vars CACHE_VARIABLES)
foreach(var ${vars})
get_property(currentHelpString CACHE "${var}" PROPERTY HELPSTRING)
if("${var}" MATCHES "STAGE0_(.*)")
list(APPEND STAGE0_ARGS "-D${CMAKE_MATCH_1}=${${var}}")
elseif("${currentHelpString}" MATCHES "No help, variable specified on the command line." OR "${currentHelpString}" STREQUAL "")
list(APPEND CL_ARGS "-D${var}=${${var}}")
if("${var}" MATCHES "USE_GMP|CHECK_OLEAN_VERSION")
# must forward options that generate incompatible .olean format
list(APPEND STAGE0_ARGS "-D${var}=${${var}}")
endif()
if("${var}" MATCHES "LLVM*")
list(APPEND STAGE0_ARGS "-D${var}=${${var}}")
endif()
elseif(("${var}" MATCHES "CMAKE_.*") AND NOT ("${var}" MATCHES "CMAKE_BUILD_TYPE") AND NOT ("${var}" MATCHES "CMAKE_HOME_DIRECTORY"))
list(APPEND PLATFORM_ARGS "-D${var}=${${var}}")
endif()
endforeach()
include(ExternalProject)
project(LEAN CXX C)
if(NOT (DEFINED STAGE0_CMAKE_EXECUTABLE_SUFFIX))
set(STAGE0_CMAKE_EXECUTABLE_SUFFIX "${CMAKE_EXECUTABLE_SUFFIX}")
endif()
# Don't do anything with cadical on wasm
if (NOT ${CMAKE_SYSTEM_NAME} MATCHES "Emscripten")
# On CI Linux, we source cadical from Nix instead; see flake.nix
find_program(CADICAL cadical)
if(NOT CADICAL)
set(CADICAL_CXX c++)
find_program(CCACHE ccache)
if(CCACHE)
set(CADICAL_CXX "${CCACHE} ${CADICAL_CXX}")
endif()
# missing stdio locking API on Windows
if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
string(APPEND CADICAL_CXXFLAGS " -DNUNLOCKED")
endif()
ExternalProject_add(cadical
PREFIX cadical
GIT_REPOSITORY https://github.com/arminbiere/cadical
GIT_TAG rel-1.9.5
CONFIGURE_COMMAND ""
# https://github.com/arminbiere/cadical/blob/master/BUILD.md#manual-build
BUILD_COMMAND $(MAKE) -f ${CMAKE_SOURCE_DIR}/src/cadical.mk CMAKE_EXECUTABLE_SUFFIX=${CMAKE_EXECUTABLE_SUFFIX} CXX=${CADICAL_CXX} CXXFLAGS=${CADICAL_CXXFLAGS}
BUILD_IN_SOURCE ON
INSTALL_COMMAND "")
set(CADICAL ${CMAKE_BINARY_DIR}/cadical/cadical${CMAKE_EXECUTABLE_SUFFIX} CACHE FILEPATH "path to cadical binary" FORCE)
set(EXTRA_DEPENDS "cadical")
endif()
list(APPEND CL_ARGS -DCADICAL=${CADICAL})
endif()
ExternalProject_add(stage0
SOURCE_DIR "${LEAN_SOURCE_DIR}/stage0"
SOURCE_SUBDIR src
BINARY_DIR stage0
# do not rebuild stage0 when git hash changes; it's not from this commit anyway
# (however, `CHECK_OLEAN_VERSION=ON` in CI will override this as we need to
# embed the githash into the stage 1 library built by stage 0)
CMAKE_ARGS -DSTAGE=0 -DUSE_GITHASH=OFF ${PLATFORM_ARGS} ${STAGE0_ARGS}
BUILD_ALWAYS ON # cmake doesn't auto-detect changes without a download method
INSTALL_COMMAND "" # skip install
DEPENDS ${EXTRA_DEPENDS}
)
ExternalProject_add(stage1
SOURCE_DIR "${LEAN_SOURCE_DIR}"
SOURCE_SUBDIR src
BINARY_DIR stage1
CMAKE_ARGS -DSTAGE=1 -DPREV_STAGE=${CMAKE_BINARY_DIR}/stage0 -DPREV_STAGE_CMAKE_EXECUTABLE_SUFFIX=${STAGE0_CMAKE_EXECUTABLE_SUFFIX} ${CL_ARGS}
BUILD_ALWAYS ON
INSTALL_COMMAND ""
DEPENDS stage0
)
ExternalProject_add(stage2
SOURCE_DIR "${LEAN_SOURCE_DIR}"
SOURCE_SUBDIR src
BINARY_DIR stage2
CMAKE_ARGS -DSTAGE=2 -DPREV_STAGE=${CMAKE_BINARY_DIR}/stage1 -DPREV_STAGE_CMAKE_EXECUTABLE_SUFFIX=${CMAKE_EXECUTABLE_SUFFIX} ${CL_ARGS}
BUILD_ALWAYS ON
INSTALL_COMMAND ""
DEPENDS stage1
EXCLUDE_FROM_ALL ON
)
ExternalProject_add(stage3
SOURCE_DIR "${LEAN_SOURCE_DIR}"
SOURCE_SUBDIR src
BINARY_DIR stage3
CMAKE_ARGS -DSTAGE=3 -DPREV_STAGE=${CMAKE_BINARY_DIR}/stage2 -DPREV_STAGE_CMAKE_EXECUTABLE_SUFFIX=${CMAKE_EXECUTABLE_SUFFIX} ${CL_ARGS}
BUILD_ALWAYS ON
INSTALL_COMMAND ""
DEPENDS stage2
EXCLUDE_FROM_ALL ON
)
# targets forwarded to appropriate stages
add_custom_target(update-stage0
COMMAND $(MAKE) -C stage1 update-stage0
DEPENDS stage1)
add_custom_target(update-stage0-commit
COMMAND $(MAKE) -C stage1 update-stage0-commit
DEPENDS stage1)
add_custom_target(test
COMMAND $(MAKE) -C stage1 test
DEPENDS stage1)
install(CODE "execute_process(COMMAND make -C stage1 install)")
add_custom_target(check-stage3
COMMAND diff "stage2/bin/lean" "stage3/bin/lean"
DEPENDS stage3)