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path: root/cmake/modules/FindLibZip.cmake
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#.rst:
# FindLibZip
# -----------
# Finds the LibZip library
#
# This will define the following variables::
#
# LIBZIP_FOUND - system has LibZip
# LIBZIP_INCLUDE_DIRS - the LibZip include directory
# LIBZIP_LIBRARIES - the LibZip libraries
#
# and the following imported targets:
#
#   libzip::zip - The LibZip library

include(cmake/scripts/common/ModuleHelpers.cmake)

set(MODULE_LC libzip)
SETUP_BUILD_VARS()

# Check for existing lib
find_package(LIBZIP CONFIG QUIET
                    HINTS ${DEPENDS_PATH}/lib
                    ${${CORE_PLATFORM_NAME_LC}_SEARCH_CONFIG})

if(NOT LIBZIP_FOUND OR LIBZIP_VERSION VERSION_LESS ${${MODULE}_VER})
  # Check for dependencies
  find_package(GnuTLS MODULE REQUIRED)

  # Eventually we will want Find modules for the following deps
  # bzip2 
  # ZLIB

  set(CMAKE_ARGS -DBUILD_DOC=OFF
                 -DBUILD_EXAMPLES=OFF
                 -DBUILD_REGRESS=OFF
                 -DBUILD_SHARED_LIBS=OFF
                 -DBUILD_TOOLS=OFF)

  set(LIBZIP_VERSION ${${MODULE}_VER})

  BUILD_DEP_TARGET()
else()
  find_path(LIBZIP_INCLUDE_DIR NAMES zip.h
                               HINTS ${DEPENDS_PATH}/include
                               ${${CORE_PLATFORM_NAME_LC}_SEARCH_CONFIG})

  find_library(LIBZIP_LIBRARY NAMES zip
                              HINTS ${DEPENDS_PATH}/lib
                              ${${CORE_PLATFORM_NAME_LC}_SEARCH_CONFIG})
endif()

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LibZip
                                  REQUIRED_VARS LIBZIP_LIBRARY LIBZIP_INCLUDE_DIR
                                  VERSION_VAR LIBZIP_VERSION)

if(LIBZIP_FOUND)
  set(LIBZIP_LIBRARIES ${LIBZIP_LIBRARY})
  set(LIBZIP_INCLUDE_DIRS ${LIBZIP_INCLUDE_DIR})

  if(NOT TARGET libzip::zip)
    add_library(libzip::zip UNKNOWN IMPORTED)

    set_target_properties(libzip::zip PROPERTIES
                                         INTERFACE_INCLUDE_DIRECTORIES "${LIBZIP_INCLUDE_DIR}"
                                         IMPORTED_LOCATION "${LIBZIP_LIBRARY}")

    if(TARGET libzip)
      add_dependencies(libzip::zip libzip)
    endif()
  else()
    # ToDo: When we correctly import dependencies cmake targets for the following
    # BZip2::BZip2, LibLZMA::LibLZMA, GnuTLS::GnuTLS, Nettle::Nettle,ZLIB::ZLIB
    # For now, we just override 
    set_target_properties(libzip::zip PROPERTIES
                                      INTERFACE_LINK_LIBRARIES "")
  endif()
  set_property(GLOBAL APPEND PROPERTY INTERNAL_DEPS_PROP libzip::zip)
else()
  if(LIBZIP_FIND_REQUIRED)
    message(FATAL_ERROR "LibZip not found.")
  endif()
endif()

mark_as_advanced(LIBZIP_INCLUDE_DIR LIBZIP_LIBRARY)