chore: import upstream snapshot with attribution

libnd4j/cmake/Setup.cmake

@@ -0,0 +1,37 @@
+# cmake/Setup.cmake
+# Handles initial project setup and global configurations.
+
+# Basic CMake Configuration
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS OFF)
+set(CMAKE_VERBOSE_MAKEFILE OFF)
+
+# Standard Settings
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CUDA_STANDARD 17)
+include(CheckCXXCompilerFlag)
+
+# MSVC runtime lib can be either "MultiThreaded" or "MultiThreadedDLL", /MT and /MD respectively
+set(MSVC_RT_LIB "MultiThreadedDLL")
+
+# Initialize job pools for parallel builds
+set_property(GLOBAL PROPERTY JOB_POOLS one_jobs=1 two_jobs=2)
+
+# Set Windows specific flags
+if(WIN32)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DSD_WINDOWS_BUILD=true")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DSD_WINDOWS_BUILD=true")
+endif()
+
+# NOTE: SD_CPU/SD_CUDA logic, SD_LIBRARY_NAME, and DEFAULT_ENGINE 
+# are now handled in the main CMakeLists.txt before this file is included
+
+# Set optimization level based on GCC_FUNCTRACE
+if(SD_GCC_FUNCTRACE)
+    message("Set optimization for functrace ${SD_GCC_FUNCTRACE}")
+    set(SD_OPTIMIZATION_LEVEL "0")
+else()
+    message("Set optimization level for no functrace ${SD_GCC_FUNCTRACE}")
+    set(SD_OPTIMIZATION_LEVEL "3")
+endif()
+message("Set default optimization level ${SD_OPTIMIZATION_LEVEL}")