Add project files (part 1/2)

Co-Authored-By: Claude Sonnet 5 <[email protected]>

injector/CMakeLists.txt

@@ -0,0 +1,39 @@
+cmake_minimum_required(VERSION 3.20)
+project(slinky-inject LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
+endif()
+
+add_executable(slinky-inject
+    main.cpp
+    tui.cpp
+)
+
+if(WIN32)
+    target_sources(slinky-inject PRIVATE inject_windows.cpp)
+    target_compile_definitions(slinky-inject PRIVATE _WIN32_WINNT=0x0601)
+    # A standalone .exe: no MinGW runtime DLLs to copy beside it.
+    target_link_options(slinky-inject PRIVATE -static -static-libgcc -static-libstdc++)
+else()
+    target_sources(slinky-inject PRIVATE inject_linux.cpp)
+    target_link_libraries(slinky-inject PRIVATE ${CMAKE_DL_LIBS} pthread)
+endif()
+
+# Copy the client library next to the injector when it is built in the same
+# tree (the top-level CMakeLists.txt does this via add_subdirectory).
+# A separate always-run target: a POST_BUILD step on slinky-inject only ran when
+# the injector itself was relinked, so the sibling copy went stale whenever only
+# the client changed.
+if(TARGET slinky)
+    add_custom_target(slinky-copy-beside-injector ALL
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different
+                $<TARGET_FILE:slinky>
+                $<TARGET_FILE_DIR:slinky-inject>/$<TARGET_FILE_NAME:slinky>
+        DEPENDS slinky slinky-inject
+        VERBATIM)
+endif()