[release/2.6][ROCm] cmake 4 workaround for hiprtc (pytorch#150324)

Pull Request resolved: pytorch#150324
Approved by: https://github.com/jeffdaily, https://github.com/atalman, https://github.com/malfet

Author: jeffdaily

cmake/public/LoadHIP.cmake

@@ -157,7 +157,15 @@ if(HIP_FOUND)
   find_package_and_print_version(hipcub REQUIRED)
   find_package_and_print_version(rocthrust REQUIRED)
   find_package_and_print_version(hipsolver REQUIRED)
-  find_package_and_print_version(hiprtc REQUIRED)
+  # workaround cmake 4 build issue
+  if(CMAKE_VERSION VERSION_GREATER_EQUAL "4.0.0")
+    message(WARNING "Work around hiprtc cmake failure for cmake >= 4")
+    set(CMAKE_POLICY_VERSION_MINIMUM 3.5)
+    find_package_and_print_version(hiprtc REQUIRED)
+    unset(CMAKE_POLICY_VERSION_MINIMUM)
+  else()
+    find_package_and_print_version(hiprtc REQUIRED)
+  endif()
 
   if(UNIX)
     find_package_and_print_version(rccl)