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path: root/indra/cmake/Meshoptimizer.cmake
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# -*- cmake -*-

include(Linking)
include(Prebuilt)

include_guard()
add_library( ll::meshoptimizer INTERFACE IMPORTED )

#use_system_binary(meshoptimizer)
if (${LINUX_DISTRO} MATCHES debian OR (${LINUX_DISTRO} MATCHES ubuntu) OR CMAKE_SYSTEM_NAME MATCHES FreeBSD OR WINDOWS)
  if (NOT WINDOWS)
    find_package(meshoptimizer)
  endif ()
  target_link_libraries( ll::meshoptimizer INTERFACE meshoptimizer)
  return ()
elseif (LINUX AND CMAKE_SYSTEM_PROCESSOR MATCHES x86_64 AND NOT (${LINUX_DISTRO} MATCHES gentoo))
use_prebuilt_binary(meshoptimizer)
elseif (${PREBUILD_TRACKING_DIR}/sentinel_installed IS_NEWER_THAN ${PREBUILD_TRACKING_DIR}/meshoptimizer_installed OR NOT ${meshoptimizer_installed} EQUAL 0)
  if (NOT EXISTS ${CMAKE_BINARY_DIR}/meshoptimizer-0.21.tar.gz)
    file(DOWNLOAD
      https://github.com/zeux/meshoptimizer/archive/refs/tags/v0.21.tar.gz
      ${CMAKE_BINARY_DIR}/meshoptimizer-0.21.tar.gz
      )
  endif ()
  file(ARCHIVE_EXTRACT
    INPUT ${CMAKE_BINARY_DIR}/meshoptimizer-0.21.tar.gz
    DESTINATION ${CMAKE_BINARY_DIR}
    )
  try_compile(MESHOPTIMIZER_RESULT
    PROJECT meshoptimizer
    SOURCE_DIR ${CMAKE_BINARY_DIR}/meshoptimizer-0.21
    BINARY_DIR ${CMAKE_BINARY_DIR}/meshoptimizer-0.21
    TARGET meshoptimizer
    CMAKE_FLAGS
      -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
      -DCMAKE_OSX_ARCHITECTURES:STRING=${CMAKE_OSX_ARCHITECTURES}
      -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=${CMAKE_OSX_DEPLOYMENT_TARGET}
      -DCMAKE_INSTALL_PREFIX:PATH=${LIBS_PREBUILT_DIR}
      -DCMAKE_INSTALL_LIBDIR:PATH=${ARCH_PREBUILT_DIRS_RELEASE}
      -DCMAKE_INSTALL_INCLUDEDIR:PATH=${LIBS_PREBUILT_DIR}/include/meshoptimizer
  )
  if (${MESHOPTIMIZER_RESULT})
    execute_process(
      COMMAND ${CMAKE_MAKE_PROGRAM} install
      WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/meshoptimizer-0.21
      OUTPUT_VARIABLE meshoptimizer_installed
      )
    file(WRITE ${PREBUILD_TRACKING_DIR}/meshoptimizer_installed "${meshoptimizer_installed}")
  endif ()
endif ()

find_library(MESHOPTIMIZER_LIBRARY
    NAMES
    meshoptimizer.lib
    libmeshoptimizer.a
    PATHS "${ARCH_PREBUILT_DIRS_RELEASE}" REQUIRED NO_DEFAULT_PATH)

target_link_libraries(ll::meshoptimizer INTERFACE ${MESHOPTIMIZER_LIBRARY})

target_include_directories(ll::meshoptimizer SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include/meshoptimizer)