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path: root/cmake/modules/FindGtest.cmake
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#.rst:
# FindGtest
# --------
# Finds the gtest library
#
# This will define the following variables::
#
# GTEST_FOUND - system has gtest
# GTEST_INCLUDE_DIRS - the gtest include directories
# GTEST_LIBRARIES - the gtest libraries
#
# and the following imported targets:
#
#   Gtest::Gtest   - The gtest library

if(ENABLE_INTERNAL_GTEST)
  include(ExternalProject)

  file(STRINGS ${CMAKE_SOURCE_DIR}/tools/depends/target/googletest/Makefile VER)
  string(REGEX MATCH "VERSION=[^ ]*" GTEST_VERSION "${VER}")
  list(GET GTEST_VERSION 0 GTEST_VERSION)
  string(SUBSTRING "${GTEST_VERSION}" 8 -1 GTEST_VERSION)

  # allow user to override the download URL with a local tarball
  # needed for offline build envs
  if(GTEST_URL)
    get_filename_component(GTEST_URL "${GTEST_URL}" ABSOLUTE)
  else()
    set(GTEST_URL http://mirrors.kodi.tv/build-deps/sources/googletest-${GTEST_VERSION}.tar.gz)
  endif()

  if(VERBOSE)
    message(STATUS "GTEST_URL: ${GTEST_URL}")
  endif()

  set(GTEST_LIBRARY ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/lib/libgtest.a)
  set(GTEST_INCLUDE_DIR ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/include)

  externalproject_add(gtest
                      URL ${GTEST_URL}
                      DOWNLOAD_DIR ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/download
                      PREFIX ${CORE_BUILD_DIR}/gtest
                      INSTALL_DIR ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}
                      CMAKE_ARGS -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} -DBUILD_GMOCK=OFF -DINSTALL_GTEST=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR> -DCMAKE_INSTALL_LIBDIR=lib
                      BUILD_BYPRODUCTS ${GTEST_LIBRARY})
  set_target_properties(gtest PROPERTIES FOLDER "External Projects")
else()
  if(PKG_CONFIG_FOUND)
    pkg_check_modules(PC_GTEST gtest>=1.10.0 QUIET)
    set(GTEST_VERSION ${PC_GTEST_VERSION})
  elseif(WIN32)
    set(GTEST_VERSION 1.10.0)
  endif()

  find_path(GTEST_INCLUDE_DIR NAMES gtest/gtest.h
                              PATHS ${PC_GTEST_INCLUDEDIR})

  find_library(GTEST_LIBRARY_RELEASE NAMES gtest
                                     PATHS ${PC_GTEST_LIBDIR})
  find_library(GTEST_LIBRARY_DEBUG NAMES gtestd
                                   PATHS ${PC_GTEST_LIBDIR})

  include(SelectLibraryConfigurations)
  select_library_configurations(GTEST)
endif()

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Gtest
                                  REQUIRED_VARS GTEST_LIBRARY GTEST_INCLUDE_DIR
                                  VERSION_VAR GTEST_VERSION)

if(GTEST_FOUND)
  set(GTEST_LIBRARIES ${GTEST_LIBRARY})
  set(GTEST_INCLUDE_DIRS ${GTEST_INCLUDE_DIR})
endif()

if(NOT TARGET Gtest::Gtest)
  add_library(Gtest::Gtest UNKNOWN IMPORTED)
  set_target_properties(Gtest::Gtest PROPERTIES
                                     IMPORTED_LOCATION "${GTEST_LIBRARY}"
                                     INTERFACE_INCLUDE_DIRECTORIES "${GTEST_INCLUDE_DIR}")
endif()

mark_as_advanced(GTEST_INCLUDE_DIR GTEST_LIBRARY)