set(H3_SOURCE_DIR ${ClickHouse_SOURCE_DIR}/contrib/h3/src/h3lib)
set(H3_BINARY_DIR ${ClickHouse_BINARY_DIR}/contrib/h3/src/h3lib)

set(SRCS
${H3_SOURCE_DIR}/lib/algos.c
${H3_SOURCE_DIR}/lib/baseCells.c
${H3_SOURCE_DIR}/lib/bbox.c
${H3_SOURCE_DIR}/lib/coordijk.c
${H3_SOURCE_DIR}/lib/faceijk.c
${H3_SOURCE_DIR}/lib/geoCoord.c
${H3_SOURCE_DIR}/lib/h3Index.c
${H3_SOURCE_DIR}/lib/h3UniEdge.c
${H3_SOURCE_DIR}/lib/linkedGeo.c
${H3_SOURCE_DIR}/lib/localij.c
${H3_SOURCE_DIR}/lib/mathExtensions.c
${H3_SOURCE_DIR}/lib/polygon.c
${H3_SOURCE_DIR}/lib/vec2d.c
${H3_SOURCE_DIR}/lib/vec3d.c
${H3_SOURCE_DIR}/lib/vertexGraph.c
)

configure_file(${H3_SOURCE_DIR}/include/h3api.h.in ${H3_BINARY_DIR}/include/h3api.h)

add_library(h3 ${SRCS})
target_include_directories(h3 SYSTEM PUBLIC ${H3_SOURCE_DIR}/include)
target_include_directories(h3 SYSTEM PUBLIC ${H3_BINARY_DIR}/include)
target_compile_definitions(h3 PRIVATE H3_HAVE_VLA)