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find_package(range-v3 QUIET CONFIG)
if (TARGET range-v3::range-v3)
message(STATUS "Found Range-V3 CONFIG at ${range-v3_CONFIG}")
else (TARGET range-v3::range-v3)
include(FetchContent)
FetchContent_Declare(
RangeV3
GIT_REPOSITORY https://github.com/ericniebler/range-v3.git
GIT_TAG ${TA_TRACKED_RANGEV3_TAG}
)
FetchContent_MakeAvailable(RangeV3)
FetchContent_GetProperties(RangeV3
SOURCE_DIR RANGEV3_SOURCE_DIR
BINARY_DIR RANGEV3_BINARY_DIR
)
# set BTAS_CONFIG to the install location so that we know where to find it
set(range-v3_CONFIG ${CMAKE_INSTALL_PREFIX}/lib/cmake/range-v3/range-v3-config.cmake)
endif(TARGET range-v3::range-v3)
# postcond check
if (NOT TARGET range-v3::range-v3)
message(FATAL_ERROR "FindOrFetchRangeV3 could not make range-v3::range-v3 target available")
endif(NOT TARGET range-v3::range-v3)
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