cmake/SelectZlib.cmake

   1 # Optional external dependency: zlib
   2 include(SanitizeBool)
   3
   4 SanitizeBool(USE_BUNDLED_ZLIB)
   5 if(USE_BUNDLED_ZLIB STREQUAL ON)
   6         set(USE_BUNDLED_ZLIB "Bundled")
   7 endif()
   8
   9 if(USE_BUNDLED_ZLIB STREQUAL "OFF")
  10         find_package(ZLIB)
  11         if(ZLIB_FOUND)
  12                 list(APPEND LIBGIT2_SYSTEM_INCLUDES ${ZLIB_INCLUDE_DIRS})
  13                 list(APPEND LIBGIT2_SYSTEM_LIBS ${ZLIB_LIBRARIES})
  14                 if(APPLE OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
  15                         list(APPEND LIBGIT2_PC_LIBS "-lz")
  16                 else()
  17                         list(APPEND LIBGIT2_PC_REQUIRES "zlib")
  18                 endif()
  19                 add_feature_info(zlib ON "using system zlib")
  20         else()
  21                 message(STATUS "zlib was not found; using bundled 3rd-party sources." )
  22         endif()
  23 endif()
  24 if(USE_BUNDLED_ZLIB STREQUAL "Chromium")
  25         add_subdirectory("${PROJECT_SOURCE_DIR}/deps/chromium-zlib" "${PROJECT_BINARY_DIR}/deps/chromium-zlib")
  26         list(APPEND LIBGIT2_DEPENDENCY_INCLUDES "${PROJECT_SOURCE_DIR}/deps/chromium-zlib")
  27         list(APPEND LIBGIT2_DEPENDENCY_OBJECTS $<TARGET_OBJECTS:chromium_zlib>)
  28         add_feature_info(zlib ON "using (Chromium) bundled zlib")
  29 elseif(USE_BUNDLED_ZLIB OR NOT ZLIB_FOUND)
  30         add_subdirectory("${PROJECT_SOURCE_DIR}/deps/zlib" "${PROJECT_BINARY_DIR}/deps/zlib")
  31         list(APPEND LIBGIT2_DEPENDENCY_INCLUDES "${PROJECT_SOURCE_DIR}/deps/zlib")
  32         list(APPEND LIBGIT2_DEPENDENCY_OBJECTS $<TARGET_OBJECTS:zlib>)
  33         add_feature_info(zlib ON "using bundled zlib")
  34 endif()