Support for CUDA 13

[norbusan]

Hi

いつもお世話になっております！Archのパケジャーです。

Current nvenc does not compile with CUDA 13.

One part is that several cuda archs are not supported anymore (anything below 75), so we would need:

--- NVEnc/configure.old 2025-09-29 16:15:42.502292200 +0200
+++ NVEnc/configure 2025-09-29 16:16:25.327507014 +0200
@@ -399,8 +399,10 @@
 if [ $CUDA_VER_MAJOR -le 10 ]; then
     GPU_CODE_GEN="--generate-code arch=compute_30,code=[compute_30,sm_30]"
 fi
-GPU_CODE_GEN="${GPU_CODE_GEN} --generate-code arch=compute_50,code=[compute_50,sm_50]"
-GPU_CODE_GEN="${GPU_CODE_GEN} --generate-code arch=compute_61,code=[compute_61,sm_61]"
+if [ $CUDA_VER_MAJOR -lt 13 ]; then
+    GPU_CODE_GEN="${GPU_CODE_GEN} --generate-code arch=compute_50,code=[compute_50,sm_50]"
+    GPU_CODE_GEN="${GPU_CODE_GEN} --generate-code arch=compute_61,code=[compute_61,sm_61]"
+fi
 GPU_CODE_GEN="${GPU_CODE_GEN} --generate-code arch=compute_75,code=[compute_75,sm_75]"
 if ( [ $CUDA_VER_MAJOR -ge 11 ] && [ $CUDA_VER_MINOR -ge 1 ] ) || [ $CUDA_VER_MAJOR -ge 12 ]; then
     GPU_CODE_GEN="${GPU_CODE_GEN} --generate-code arch=compute_86,code=[compute_86,sm_86]"

But even with that, it fails to compile with various undefined refs like

./NVEncSDK/Common/inc/helper_cuda.h(853): error: class "cudaDeviceProp" has no member "computeMode"
          if (deviceProp.computeMode != cudaComputeModeProhibited)
                         ^

Just FYI.

Best regards

Norbert

[rigaya]

thank you for letting me know the issue with CUDA 13.

Actually, CUDA 13 build had various problems, now commits up to 65c7962 shall allow to build with CUDA 13.

[norbusan]

Thanks for the quick answer and support for CUDA 13. I will wait for the next release and package it for Arch AUR.
All best best
Norbert