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c2790cd23e
* [google-cloud-cpp] Fix libcurl linkage * [curl] Fix libcurl exported CMake target config (Windows)
143 lines
6.3 KiB
Diff
143 lines
6.3 KiB
Diff
diff --git a/cmake/IncludeCurl.cmake b/cmake/IncludeCurl.cmake
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index 6ea7ca3e6..3c2db6b28 100644
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--- a/cmake/IncludeCurl.cmake
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+++ b/cmake/IncludeCurl.cmake
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@@ -34,49 +34,57 @@ set_property(CACHE GOOGLE_CLOUD_CPP_CURL_PROVIDER
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if ("${GOOGLE_CLOUD_CPP_CURL_PROVIDER}" STREQUAL "external")
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include(external/curl)
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elseif("${GOOGLE_CLOUD_CPP_CURL_PROVIDER}" STREQUAL "package")
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- # Search for libcurl, in CMake 3.5 this does not define a target, but it
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- # will in 3.12 (see https://cmake.org/cmake/help/git-
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- # stage/module/FindCURL.html for details). Until then, define the target
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- # ourselves if it is missing.
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- find_package(CURL REQUIRED)
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- if (NOT TARGET CURL::libcurl)
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- add_library(CURL::libcurl UNKNOWN IMPORTED)
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- set_property(TARGET CURL::libcurl
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- APPEND
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- PROPERTY INTERFACE_INCLUDE_DIRECTORIES
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- "${CURL_INCLUDE_DIR}")
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- set_property(TARGET CURL::libcurl
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- APPEND
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- PROPERTY IMPORTED_LOCATION "${CURL_LIBRARY}")
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- endif ()
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- # If the library is static, we need to explicitly link its dependencies.
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- # However, we should not do so for shared libraries, because the version of
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- # OpenSSL (for example) found by find_package() may be newer than the
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- # version linked against libcurl.
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- if ("${CURL_LIBRARY}" MATCHES "${CMAKE_STATIC_LIBRARY_SUFFIX}$")
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- find_package(OpenSSL REQUIRED)
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- find_package(ZLIB REQUIRED)
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- set_property(TARGET CURL::libcurl
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- APPEND
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- PROPERTY INTERFACE_LINK_LIBRARIES
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- OpenSSL::SSL
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- OpenSSL::Crypto
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- ZLIB::ZLIB)
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- message(STATUS "CURL linkage will be static")
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- if (WIN32)
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+ # Search for libcurl, first using CONFIG mode, and retrying
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+ # using MODULE mode if that fails
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+ find_package(CURL CONFIG QUIET) # Deliberately quiet, so we can handle the result
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+ if(CURL_FOUND)
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+ message(STATUS "CURL library found via CONFIG mode")
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+ else()
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+ # CONFIG mode failed - fallback to MODULE mode
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+ # In CMake 3.5 this does not define a target, but it
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+ # will in 3.12 (see https://cmake.org/cmake/help/git-
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+ # stage/module/FindCURL.html for details). Until then, define the target
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+ # ourselves if it is missing.
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+ find_package(CURL MODULE REQUIRED) # Use REQUIRED the second time to fail out
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+ if (NOT TARGET CURL::libcurl)
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+ add_library(CURL::libcurl UNKNOWN IMPORTED)
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set_property(TARGET CURL::libcurl
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APPEND
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- PROPERTY INTERFACE_LINK_LIBRARIES
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- crypt32
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- wsock32
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- ws2_32)
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+ PROPERTY INTERFACE_INCLUDE_DIRECTORIES
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+ "${CURL_INCLUDE_DIR}")
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+ set_property(TARGET CURL::libcurl
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+ APPEND
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+ PROPERTY IMPORTED_LOCATION "${CURL_LIBRARY}")
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endif ()
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- if (APPLE)
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+ # If the library is static, we need to explicitly link its dependencies.
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+ # However, we should not do so for shared libraries, because the version of
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+ # OpenSSL (for example) found by find_package() may be newer than the
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+ # version linked against libcurl.
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+ if ("${CURL_LIBRARY}" MATCHES "${CMAKE_STATIC_LIBRARY_SUFFIX}$")
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+ find_package(OpenSSL REQUIRED)
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+ find_package(ZLIB REQUIRED)
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set_property(TARGET CURL::libcurl
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APPEND
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- PROPERTY INTERFACE_LINK_LIBRARIES ldap)
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+ PROPERTY INTERFACE_LINK_LIBRARIES
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+ OpenSSL::SSL
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+ OpenSSL::Crypto
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+ ZLIB::ZLIB)
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+ message(STATUS "CURL linkage will be static")
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+ if (WIN32)
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+ set_property(TARGET CURL::libcurl
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+ APPEND
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+ PROPERTY INTERFACE_LINK_LIBRARIES
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+ crypt32
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+ wsock32
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+ ws2_32)
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+ endif ()
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+ if (APPLE)
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+ set_property(TARGET CURL::libcurl
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+ APPEND
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+ PROPERTY INTERFACE_LINK_LIBRARIES ldap)
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+ endif ()
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+ else()
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+ message(STATUS "CURL linkage will be non-static")
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endif ()
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- else()
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- message(STATUS "CURL linkage will be non-static")
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endif ()
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endif ()
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diff --git a/google/cloud/storage/config.cmake.in b/google/cloud/storage/config.cmake.in
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index a4d261815..640089e09 100644
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--- a/google/cloud/storage/config.cmake.in
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+++ b/google/cloud/storage/config.cmake.in
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@@ -13,21 +13,25 @@
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# limitations under the License.
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include(CMakeFindDependencyMacro)
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-find_dependency(CURL)
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+# Search for libcurl, first using CONFIG mode, and retrying
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+# using MODULE mode if that fails
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+find_package(CURL CONFIG QUIET) # find_package so we can explicitly specify QUIET
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+if(NOT CURL_FOUND)
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+ find_dependency(CURL MODULE)
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+ # Some versions of FindCURL do not define CURL::libcurl, so we define it ourselves.
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+ if (NOT TARGET CURL::libcurl)
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+ add_library(CURL::libcurl UNKNOWN IMPORTED)
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+ set_property(TARGET CURL::libcurl
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+ APPEND
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+ PROPERTY INTERFACE_INCLUDE_DIRECTORIES "${CURL_INCLUDE_DIR}")
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+ set_property(TARGET CURL::libcurl
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+ APPEND
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+ PROPERTY IMPORTED_LOCATION "${CURL_LIBRARY}")
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+ endif ()
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+endif()
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find_dependency(Crc32c)
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find_dependency(google_cloud_cpp_common)
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find_dependency(OpenSSL)
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find_dependency(ZLIB)
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-# Some versions of FindCURL do not define CURL::libcurl, so we define it ourselves.
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-if (NOT TARGET CURL::libcurl)
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- add_library(CURL::libcurl UNKNOWN IMPORTED)
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- set_property(TARGET CURL::libcurl
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- APPEND
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- PROPERTY INTERFACE_INCLUDE_DIRECTORIES "${CURL_INCLUDE_DIR}")
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- set_property(TARGET CURL::libcurl
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- APPEND
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- PROPERTY IMPORTED_LOCATION "${CURL_LIBRARY}")
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-endif ()
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-
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include("${CMAKE_CURRENT_LIST_DIR}/storage-targets.cmake")
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