project(LinkObjLHSShared C)

# Create a versioned shared library that does not build as part of "all".
add_library(OtherLib SHARED a.c)
target_compile_definitions(OtherLib INTERFACE REQUIRED PRIVATE COMPILE_FOR_SHARED_LIB)
set_target_properties(OtherLib PROPERTIES SOVERSION 0 VERSION 0.0.0 EXCLUDE_FROM_ALL ON)

add_library(AnObjLib OBJECT requires.c)
target_link_libraries(AnObjLib PUBLIC OtherLib)

add_executable(LinkObjLHSShared LinkObjLHSShared.c)
target_link_libraries(LinkObjLHSShared AnObjLib)

# Verify that our dependency on OtherLib generated its versioning symlinks.
if(CMAKE_GENERATOR STREQUAL "Xcode" AND
   "${CMAKE_SYSTEM_NAME};${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "Darwin;arm64")
  if(XCODE_VERSION VERSION_GREATER_EQUAL 15)
    # Xcode 15+ enforces '-Xlinker -no_adhoc_codesign' after user flags,
    # so we cannot convince the linker to add an adhoc signature.
    add_custom_command(TARGET LinkObjLHSShared POST_BUILD COMMAND codesign --sign - --force "$<TARGET_FILE:LinkObjLHSShared>")
  else()
    # Xcode runs POST_BUILD before signing, so let the linker use ad-hoc signing.
    # See CMake Issue 21845.
    target_link_options(LinkObjLHSShared PRIVATE LINKER:-adhoc_codesign)
  endif()
endif()
add_custom_command(TARGET LinkObjLHSShared POST_BUILD COMMAND LinkObjLHSShared)