modified FindZstd

# Standard names to search for

set(ZStd_NAMES zstd zstd_static)

if (NOT PKG_CONFIG_FOUND)

    find_package(PkgConfig)

endif ()

if (PKG_CONFIG_FOUND)

    pkg_check_modules(PC_ZSTD QUIET libzstd)

    find_path(ZStd_INCLUDE_DIR

              NAMES zstd.h

              PATHS ${PC_ZSTD_INCLUDE_DIRS}

              PATH_SUFFIXES include)

# Allow ZStd_LIBRARY to be set manually, as the location of the zstd library

if(NOT ZStd_LIBRARY)

    find_library(ZStd_LIBRARY_RELEASE

                 NAMES ${ZStd_NAMES}

                 PATHS ${PC_ZSTD_LIBRARY_DIRS}

                 PATH_SUFFIXES lib)

    set(ZStd_VERSION_STRING ${PC_ZSTD_VERSION})

else()

    find_path(ZStd_INCLUDE_DIR

              NAMES zstd.h

              PATH_SUFFIXES include)

    find_library(ZStd_LIBRARY_RELEASE

                 NAMES ${ZStd_NAMES}

                 PATH_SUFFIXES lib)

endif()

# Allow ZStd_LIBRARY to be set manually, as the location of the zstd library

if(NOT ZStd_LIBRARY)

  include(SelectLibraryConfigurations)

  select_library_configurations(ZStd)

endif()