| Mike Kruskal | cac9765 | 2022-08-12 16:41:00 -0700 | [diff] [blame] | 1 | # Setup our dependency on Abseil. |
| 2 | |
| 3 | set(ABSL_PROPAGATE_CXX_STD ON) |
| 4 | |
| 5 | if(protobuf_ABSL_PROVIDER STREQUAL "module") |
| 6 | if(NOT ABSL_ROOT_DIR) |
| 7 | set(ABSL_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/abseil-cpp) |
| 8 | endif() |
| 9 | if(EXISTS "${ABSL_ROOT_DIR}/CMakeLists.txt") |
| 10 | if(protobuf_INSTALL) |
| 11 | # When protobuf_INSTALL is enabled and Abseil will be built as a module, |
| 12 | # Abseil will be installed along with protobuf for convenience. |
| 13 | set(ABSL_ENABLE_INSTALL ON) |
| 14 | endif() |
| 15 | add_subdirectory(${ABSL_ROOT_DIR} third_party/abseil-cpp) |
| 16 | else() |
| 17 | message(WARNING "protobuf_ABSL_PROVIDER is \"module\" but ABSL_ROOT_DIR is wrong") |
| 18 | endif() |
| 19 | if(protobuf_INSTALL AND NOT _protobuf_INSTALL_SUPPORTED_FROM_MODULE) |
| 20 | message(WARNING "protobuf_INSTALL will be forced to FALSE because protobuf_ABSL_PROVIDER is \"module\" and CMake version (${CMAKE_VERSION}) is less than 3.13.") |
| 21 | set(protobuf_INSTALL FALSE) |
| 22 | endif() |
| 23 | elseif(protobuf_ABSL_PROVIDER STREQUAL "package") |
| 24 | # Use "CONFIG" as there is no built-in cmake module for absl. |
| 25 | find_package(absl REQUIRED CONFIG) |
| 26 | endif() |
| 27 | set(_protobuf_FIND_ABSL "if(NOT TARGET absl::strings)\n find_package(absl CONFIG)\nendif()") |
| 28 | |
| 29 | set(protobuf_ABSL_USED_TARGETS |
| 30 | absl::strings |
| 31 | absl::strings_internal |
| 32 | ) |
