transitive matrix

MODULE.bazel

@@ -13,6 +13,9 @@ bazel_dep(name = "rules_python", version = "1.9.0")
 bazel_dep(name = "rules_shell", version = "0.6.1")
 bazel_dep(name = "bazel_lib", version = "3.2.0")
 
+cc_compatibility_proxy = use_extension("@rules_cc//cc:extensions.bzl", "compatibility_proxy")
+use_repo(cc_compatibility_proxy, "cc_compatibility_proxy")
+
 # Dev dependencies
 bazel_dep(name = "gazelle", version = "0.41.0", dev_dependency = True, repo_name = "bazel_gazelle")
 bazel_dep(name = "bazel_skylib_gazelle_plugin", version = "1.9.0", dev_dependency = True)

examples/MODULE.bazel

@@ -94,6 +94,7 @@ use_repo(
     "bison",
     "cares",
     "curl",
+    "examples_libarchive",
     "examples_zlib",
     "expat",
     "flex",
@@ -141,6 +142,12 @@ use_repo(
 bazel_dep(name = "bazel_skylib", version = "1.9.0")
 bazel_dep(name = "bazel_lib", version = "3.2.0")
 
+bazel_lib_toolchains = use_extension("@bazel_lib//lib:extensions.bzl", "toolchains")
+bazel_lib_toolchains.coreutils()
+use_repo(bazel_lib_toolchains, "coreutils_toolchains")
+
+register_toolchains("@coreutils_toolchains//:all")
+
 # Support the integration tests
 
 new_local_repository = use_repo_rule("@bazel_tools//tools/build_defs/repo:local.bzl", "new_local_repository")

examples/integration_tests/transitive_matrix/BUILD.bazel

@@ -0,0 +1,73 @@
+exports_files(
+    [
+        "app.c",
+        "linkage_test.sh",
+    ],
+    visibility = ["//visibility:public"],
+)
+
+filegroup(
+    name = "foreign_app_srcs",
+    srcs = [
+        "CMakeLists.txt",
+        "app.c",
+    ],
+    visibility = ["//visibility:public"],
+)
+
+test_suite(
+    name = "linkage_tests",
+    tests = [
+        ":cc_binary_linkage_tests",
+        ":cmake_linkage_tests",
+    ],
+)
+
+test_suite(
+    name = "cc_binary_tests",
+    tests = [
+        ":cc_binary_linkage_tests",
+    ],
+)
+
+test_suite(
+    name = "cmake_tests",
+    tests = [
+        ":cmake_linkage_tests",
+    ],
+)
+
+test_suite(
+    name = "provider_parity_tests",
+    tests = [
+        "//integration_tests/transitive_matrix/provider_parity:tests",
+    ],
+)
+
+test_suite(
+    name = "tests",
+    tests = [
+        ":linkage_tests",
+        ":provider_parity_tests",
+    ],
+)
+
+test_suite(
+    name = "cc_binary_linkage_tests",
+    tests = [
+        "//integration_tests/transitive_matrix/cc_direct:linkage_tests",
+        "//integration_tests/transitive_matrix/cc_dynamic:linkage_tests",
+        "//integration_tests/transitive_matrix/cc_static:linkage_tests",
+        "//integration_tests/transitive_matrix/cc_wrap:linkage_tests",
+    ],
+)
+
+test_suite(
+    name = "cmake_linkage_tests",
+    tests = [
+        "//integration_tests/transitive_matrix/cmake_direct:linkage_tests",
+        "//integration_tests/transitive_matrix/cmake_dynamic:linkage_tests",
+        "//integration_tests/transitive_matrix/cmake_static:linkage_tests",
+        "//integration_tests/transitive_matrix/cmake_wrap:linkage_tests",
+    ],
+)

examples/integration_tests/transitive_matrix/CMakeLists.txt

@@ -0,0 +1,50 @@
+cmake_minimum_required(VERSION 3.15)
+
+project(transitive_cc_foreign_libarchive_matrix C)
+
+set(LIBARCHIVE_LIBRARY_NAME "archive" CACHE STRING "Library name to find for libarchive")
+set(ZLIB_LIBRARY_NAME "" CACHE STRING "Optional library name to find for zlib")
+
+if(APPLE)
+    set(CMAKE_INSTALL_NAME_DIR "@rpath")
+    set(CMAKE_MACOSX_RPATH ON)
+endif()
+
+function(matrix_add_dependency target library_name header_name)
+    find_library(
+        APP_FOUND_LIBRARY
+        NAMES ${library_name}
+        REQUIRED
+    )
+    find_path(
+        APP_FOUND_INCLUDE_DIR
+        NAMES ${header_name}
+        REQUIRED
+    )
+    target_link_libraries(${target} PRIVATE "${APP_FOUND_LIBRARY}")
+    target_include_directories(${target} PRIVATE "${APP_FOUND_INCLUDE_DIR}")
+    unset(APP_FOUND_LIBRARY CACHE)
+    unset(APP_FOUND_INCLUDE_DIR CACHE)
+endfunction()
+
+function(matrix_add_optional_dependency target library_name header_name)
+    if(NOT library_name)
+        return()
+    endif()
+    find_library(APP_FOUND_LIBRARY NAMES ${library_name})
+    find_path(APP_FOUND_INCLUDE_DIR NAMES ${header_name})
+    if(APP_FOUND_LIBRARY AND APP_FOUND_INCLUDE_DIR)
+        target_link_libraries(${target} PRIVATE "${APP_FOUND_LIBRARY}")
+        target_include_directories(${target} PRIVATE "${APP_FOUND_INCLUDE_DIR}")
+    endif()
+    unset(APP_FOUND_LIBRARY CACHE)
+    unset(APP_FOUND_INCLUDE_DIR CACHE)
+endfunction()
+
+add_executable(app app.c)
+matrix_add_dependency(app "${LIBARCHIVE_LIBRARY_NAME}" archive.h)
+matrix_add_optional_dependency(app "${ZLIB_LIBRARY_NAME}" zlib.h)
+if(CMAKE_DL_LIBS)
+    target_link_libraries(app PRIVATE "${CMAKE_DL_LIBS}")
+endif()
+install(TARGETS app RUNTIME DESTINATION bin)