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include (ExternalProject)
set(highwayhash_INCLUDE_DIR ${CMAKE_CURRENT_BINARY_DIR}/external/highwayhash)
set(highwayhash_URL https://github.com/google/highwayhash.git)
set(highwayhash_TAG be5edafc2e1a455768e260ccd68ae7317b6690ee)
set(highwayhash_BUILD ${CMAKE_CURRENT_BINARY_DIR}/highwayhash/src/highwayhash)
set(highwayhash_INSTALL ${CMAKE_CURRENT_BINARY_DIR}/highwayhash/install)
# put highwayhash includes in the directory where they are expected
add_custom_target(highwayhash_create_destination_dir
COMMAND ${CMAKE_COMMAND} -E make_directory ${highwayhash_INCLUDE_DIR}/highwayhash
DEPENDS highwayhash)
add_custom_target(highwayhash_copy_headers_to_destination
DEPENDS highwayhash_create_destination_dir)
if(WIN32)
set(highwayhash_HEADERS "${highwayhash_BUILD}/highwayhash/*.h")
set(highwayhash_STATIC_LIBRARIES ${highwayhash_INSTALL}/lib/highwayhash.lib)
else()
set(highwayhash_HEADERS "${highwayhash_BUILD}/highwayhash/*.h")
set(highwayhash_STATIC_LIBRARIES ${highwayhash_INSTALL}/lib/libhighwayhash.a)
endif()
ExternalProject_Add(highwayhash
PREFIX highwayhash
GIT_REPOSITORY ${highwayhash_URL}
GIT_TAG ${highwayhash_TAG}
DOWNLOAD_DIR "${DOWNLOAD_LOCATION}"
BUILD_IN_SOURCE 1
PATCH_COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/patches/highwayhash/CMakeLists.txt ${highwayhash_BUILD}
INSTALL_DIR ${highwayhash_INSTALL}
CMAKE_CACHE_ARGS
-DCMAKE_BUILD_TYPE:STRING=Release
-DCMAKE_VERBOSE_MAKEFILE:BOOL=OFF
-DCMAKE_INSTALL_PREFIX:STRING=${highwayhash_INSTALL})
add_custom_command(TARGET highwayhash_copy_headers_to_destination PRE_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_directory ${highwayhash_INSTALL}/include/ ${highwayhash_INCLUDE_DIR}/highwayhash)
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