include(ProjectMPIR)

# FIXME: Rename to LibFF as that's the name of the library.

ExternalProject_Add(snark

PREFIX ${CMAKE_SOURCE_DIR}/deps

DOWNLOAD_NAME libff-97d3fa6c.tar.gz

DOWNLOAD_NO_PROGRESS TRUE

URL https://github.com/chfast/libff/archive/97d3fa6cdbd4b7549c7a8a179dc97308dbfd044d.tar.gz

URL_HASH SHA256=f102f3ee43c96c9a81c20d8c0446c805c6b8c0e3121518b3625f08e2c230096e

CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>

-DGMP_INCLUDE_DIR=${MPIR_INCLUDE_DIR}

-DGMP_LIBRARIES=${MPIR_LIBRARY}

-DGMPXX_LIBRARIES=${MPIR_LIBRARY}

-DCURVE=ALT_BN128 -DPERFORMANCE=Off -DWITH_PROCPS=Off

-DUSE_PT_COMPRESSION=Off

-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}

-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}

BUILD_COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --config Release

INSTALL_COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --config Release --target install

)

add_dependencies(snark boost)

add_dependencies(snark mpir)

# Create snark imported library

ExternalProject_Get_Property(snark INSTALL_DIR)

add_library(Snark STATIC IMPORTED)

set(SNARK_LIBRARY ${INSTALL_DIR}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}ff${CMAKE_STATIC_LIBRARY_SUFFIX})

set(SNARK_INCLUDE_DIR ${INSTALL_DIR}/include/libff)

file(MAKE_DIRECTORY ${SNARK_INCLUDE_DIR})

set_property(TARGET Snark PROPERTY IMPORTED_LOCATION ${SNARK_LIBRARY})

set_property(TARGET Snark PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${SNARK_INCLUDE_DIR})

set_property(TARGET Snark PROPERTY INTERFACE_LINK_LIBRARIES MPIR::mpir)

add_dependencies(Snark snark)

unset(INSTALL_DIR)