Update CMakeLists.txt

Autodetec win version to correct process CreateFile2

examples/server/CMakeLists.txt

@@ -4,9 +4,23 @@ option(LLAMA_SERVER_SSL "Build SSL support for the server" OFF)
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
+macro(get_WIN32_WINNT version)
+    if (WIN32 AND CMAKE_SYSTEM_VERSION)
+        set(ver ${CMAKE_SYSTEM_VERSION})
+		string(REGEX MATCH "^([0-9]+).([0-9])" ver ${ver})
+        string(REPLACE "." "" ver ${ver})
+        string(REGEX REPLACE "([0-9])" "0\\1" ver ${ver})
+        set(${version} "0x${ver}")
+    endif()
+endmacro()
+
+get_WIN32_WINNT(ver)
+
 if (MINGW)
     # fix: https://github.com/ggerganov/llama.cpp/actions/runs/9651004652/job/26617901362?pr=8006
-    add_compile_definitions(_WIN32_WINNT=${GGML_WIN_VER})
+    # add_compile_definitions(_WIN32_WINNT=${GGML_WIN_VER})
+	add_definitions(-D_WIN32_WINNT=${ver}) 
+	message(STATUS "MinGW detected, setting _WIN32_WINNT to ${ver}")    
 endif()
 
 set(TARGET_SRCS