Add options to toggle building headers and libraries

Author: DataTriny

bindings/c/CMakeLists.txt

@@ -2,52 +2,65 @@ cmake_minimum_required(VERSION 3.20)
 
 project(accesskit_c)
 
-include(FetchContent)
+option(ACCESSKIT_BUILD_HEADERS "Whether to build header files" ON)
+option(ACCESSKIT_BUILD_LIBRARIES "Whether to build libraries" ON)
 
-FetchContent_Declare(
-    Corrosion
-    GIT_REPOSITORY https://github.com/corrosion-rs/corrosion.git
-    GIT_TAG v0.3.5
-)
-FetchContent_MakeAvailable(Corrosion)
+if (ACCESSKIT_BUILD_LIBRARIES)
+    include(FetchContent)
 
-set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
-set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
-set(CMAKE_PDB_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
-corrosion_import_crate(MANIFEST_PATH Cargo.toml)
+    FetchContent_Declare(
+        Corrosion
+        GIT_REPOSITORY https://github.com/corrosion-rs/corrosion.git
+        GIT_TAG v0.3.5
+    )
+    FetchContent_MakeAvailable(Corrosion)
 
-find_program(RUSTUP rustup)
-find_program(CBINDGEN cbindgen)
-find_program(CLANG_FORMAT clang-format)
+    set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    set(CMAKE_PDB_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    corrosion_import_crate(MANIFEST_PATH Cargo.toml)
+endif()
 
-add_custom_target(headers
-    COMMAND ${RUSTUP} run nightly ${CBINDGEN} --crate accesskit_c --output accesskit.hpp "${CMAKE_SOURCE_DIR}"
-    COMMAND ${CLANG_FORMAT} -i accesskit.hpp
-    COMMAND ${CMAKE_COMMAND} -E rename accesskit.hpp accesskit.h
-    BYPRODUCTS accesskit.h
-)
+if (ACCESSKIT_BUILD_HEADERS)
+    find_program(RUSTUP rustup)
+    find_program(CBINDGEN cbindgen)
+    find_program(CLANG_FORMAT clang-format)
 
-add_dependencies(cargo-prebuild_accesskit headers)
+    add_custom_target(headers ALL
+        COMMAND ${RUSTUP} run nightly ${CBINDGEN} --crate accesskit_c --output accesskit.hpp "${CMAKE_SOURCE_DIR}"
+        COMMAND ${CLANG_FORMAT} -i accesskit.hpp
+        COMMAND ${CMAKE_COMMAND} -E rename accesskit.hpp accesskit.h
+        BYPRODUCTS accesskit.h
+    )
+
+    if (ACCESSKIT_BUILD_LIBRARIES)
+        add_dependencies(cargo-prebuild_accesskit headers)
+    endif()
+endif()
 
 include("accesskit.cmake")
 
-install(FILES
-    "${CMAKE_CURRENT_BINARY_DIR}/accesskit.h"
-    DESTINATION "${ACCESSKIT_INCLUDE_DIR}"
-)
-
-install(FILES
-    "$<TARGET_PROPERTY:accesskit-static,IMPORTED_LOCATION>"
-    DESTINATION "${ACCESSKIT_LIBRARIES_DIR}/static"
-)
-
-install(FILES
-    "$<TARGET_PROPERTY:accesskit-shared,IMPORTED_LOCATION>"
-    "$<$<STREQUAL:${_accesskit_toolchain},msvc>:${CMAKE_CURRENT_BINARY_DIR}/accesskit.pdb>"
-    DESTINATION "${ACCESSKIT_LIBRARIES_DIR}/shared"
-)
-install(FILES
-    "$<$<NOT:$<STREQUAL:$<TARGET_PROPERTY:accesskit-shared,IMPORTED_IMPLIB>,>>:$<TARGET_PROPERTY:accesskit-shared,IMPORTED_IMPLIB>>"
-    RENAME "accesskit.lib"
-    DESTINATION "${ACCESSKIT_LIBRARIES_DIR}/shared"
-)
+if (ACCESSKIT_BUILD_HEADERS)
+    install(FILES
+        "${CMAKE_CURRENT_BINARY_DIR}/accesskit.h"
+        DESTINATION "${ACCESSKIT_INCLUDE_DIR}"
+    )
+endif()
+
+if (ACCESSKIT_BUILD_LIBRARIES)
+    install(FILES
+        "$<TARGET_PROPERTY:accesskit-static,IMPORTED_LOCATION>"
+        DESTINATION "${ACCESSKIT_LIBRARIES_DIR}/static"
+    )
+
+    install(FILES
+        "$<TARGET_PROPERTY:accesskit-shared,IMPORTED_LOCATION>"
+        "$<$<STREQUAL:${_accesskit_toolchain},msvc>:${CMAKE_CURRENT_BINARY_DIR}/accesskit.pdb>"
+        DESTINATION "${ACCESSKIT_LIBRARIES_DIR}/shared"
+    )
+    install(FILES
+        "$<$<NOT:$<STREQUAL:$<TARGET_PROPERTY:accesskit-shared,IMPORTED_IMPLIB>,>>:$<TARGET_PROPERTY:accesskit-shared,IMPORTED_IMPLIB>>"
+        RENAME "accesskit.lib"
+        DESTINATION "${ACCESSKIT_LIBRARIES_DIR}/shared"
+    )
+endif()