From 048adb9b0138f082d3706dc2268fc649e3a8a3c2 Mon Sep 17 00:00:00 2001
From: Gaetan Lepage <gaetan@glepage.com>
Date: Thu, 11 Jun 2026 07:21:21 +0000
Subject: [PATCH] cudaPackages.nccl: 2.28.7-1 -> 2.30.7-1

Diff: https://github.com/NVIDIA/nccl/compare/v2.28.7-1...v2.30.7-1

Changelog: https://github.com/NVIDIA/nccl/releases/tag/v2.30.7-1
---
 pkgs/development/cuda-modules/packages/nccl.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/cuda-modules/packages/nccl.nix b/pkgs/development/cuda-modules/packages/nccl.nix
index 51a4399099ca..f73b91417fe4 100644
--- a/pkgs/development/cuda-modules/packages/nccl.nix
+++ b/pkgs/development/cuda-modules/packages/nccl.nix
@@ -46,7 +46,9 @@ backendStdenv.mkDerivation (finalAttrs: {
   #   by differences in assumed version of CCCL: using a newer CCCL with an older release of CUDA can (sometimes) allow
   #   newer versions of NCCL than what we provide here.
   version =
-    if cudaAtLeast "11.7" then
+    if cudaAtLeast "12.0" then
+      "2.30.7-1"
+    else if cudaAtLeast "11.7" then
       "2.28.7-1"
     else if cudaAtLeast "11.6" then
       "2.26.6-1"
@@ -58,6 +60,7 @@ backendStdenv.mkDerivation (finalAttrs: {
     repo = "nccl";
     tag = "v${finalAttrs.version}";
     hash = getAttr finalAttrs.version {
+      "2.30.7-1" = "sha256-fdiQZweX0jYfGroP0bL5Sfv3+DkCzVBZZLEbPv8aqq8=";
       "2.28.7-1" = "sha256-NM19OiBBGmv3cGoVoRLKSh9Y59hiDoei9NIrRnTqWeA=";
       "2.26.6-1" = "sha256-vkWMGXCy+dIpYCecdafmOAGlnfRxIQ5Y2ZQuMjinraI=";
       "2.25.1-1" = "sha256-3snh0xdL9I5BYqdbqdl+noizJoI38mZRVOJChgEE1I8=";
@@ -102,6 +105,10 @@ backendStdenv.mkDerivation (finalAttrs: {
       --replace-fail \
         '-std=c++11' \
         '$(CXXSTD)'
+  ''
+  + optionalString (versionAtLeast finalAttrs.version "2.30.7-1") ''
+    nixLog "patching shebang in $PWD/src/misc/generate_git_version.py"
+    patchShebangs ./src/misc/generate_git_version.py
   '';
 
   # TODO: This would likely break under cross; need to delineate between build and host packages.