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#new_http_archive(
# name = "eigen_archive",
# url = "https://bitbucket.org/eigen/eigen/get/...",
# sha256 = "...",
# build_file = "eigen.BUILD",
#)
include (ExternalProject)
# We parse the current Eigen version and archive hash from the bazel configuration
file(STRINGS ${PROJECT_SOURCE_DIR}/../../workspace.bzl workspace_contents)
foreach(line ${workspace_contents})
string(REGEX MATCH ".*eigen_version.*=.*\"(.*)\"" has_version ${line})
if(has_version)
set(eigen_version ${CMAKE_MATCH_1})
break()
endif()
endforeach()
foreach(line ${workspace_contents})
string(REGEX MATCH ".*eigen_sha256.*=.*\"(.*)\"" has_hash ${line})
if(has_hash)
set(eigen_hash ${CMAKE_MATCH_1})
break()
endif()
endforeach()
set(eigen_INCLUDE_DIRS
${CMAKE_CURRENT_BINARY_DIR}
${CMAKE_CURRENT_BINARY_DIR}/external/eigen_archive
${tensorflow_source_dir}/third_party/eigen3
)
set(eigen_URL https://bitbucket.org/eigen/eigen/get/${eigen_version}.tar.gz)
set(eigen_HASH SHA256=${eigen_hash})
set(eigen_BUILD ${CMAKE_CURRENT_BINARY_DIR}/eigen/src/eigen)
set(eigen_INSTALL ${CMAKE_CURRENT_BINARY_DIR}/eigen/install)
ExternalProject_Add(eigen
PREFIX eigen
URL ${eigen_URL}
URL_HASH ${eigen_HASH}
DOWNLOAD_DIR "${DOWNLOAD_LOCATION}"
INSTALL_DIR "${eigen_INSTALL}"
CMAKE_CACHE_ARGS
-DCMAKE_BUILD_TYPE:STRING=Release
-DCMAKE_VERBOSE_MAKEFILE:BOOL=OFF
-DCMAKE_INSTALL_PREFIX:STRING=${eigen_INSTALL}
-DINCLUDE_INSTALL_DIR:STRING=${CMAKE_CURRENT_BINARY_DIR}/external/eigen_archive
)
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