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# XXX that belongs in each variant's directory!
function(otr_dist_select_variant)
file(GLOB variants "variant/*")
set(variant-list "")
foreach(k ${variants})
get_filename_component(name "${k}" NAME)
if(EXISTS "${k}/_variant.cmake" AND EXISTS "${k}/CMakeLists.txt")
list(APPEND variant-list "${name}")
else()
message(FATAL_ERROR "Stray item in variant dir '${name}'")
endif()
endforeach()
set(opentrack_variant "default" CACHE STRING "")
set(dir "${CMAKE_SOURCE_DIR}/variant/${opentrack_variant}")
if(NOT EXISTS "${dir}/_variant.cmake" OR NOT EXISTS "${dir}/CMakeLists.txt")
set(opentrack_variant "default" CACHE STRING "" FORCE)
set(dir "${CMAKE_SOURCE_DIR}/variant/${opentrack_variant}")
endif()
set_property(CACHE opentrack_variant PROPERTY STRINGS "${variant-list}")
include("${dir}/_variant.cmake")
otr_init_variant()
add_subdirectory("${dir}")
endfunction()
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