From 68d772a38f6a588dd0c1f369a46ae74677eb46ac Mon Sep 17 00:00:00 2001
From: Karl Hallsby <karl@hallsby.com>
Date: Sun, 31 May 2026 14:02:58 -0500
Subject: [PATCH 1/2] octavePackages.netcdf: Bootstrap sources ourselves

---
 .../octave-modules/netcdf/default.nix         | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/pkgs/development/octave-modules/netcdf/default.nix b/pkgs/development/octave-modules/netcdf/default.nix
index 5a93cf59a72d..07f29825d19f 100644
--- a/pkgs/development/octave-modules/netcdf/default.nix
+++ b/pkgs/development/octave-modules/netcdf/default.nix
@@ -4,6 +4,8 @@
   fetchFromGitHub,
   netcdf,
   nix-update-script,
+  pkg-config,
+  autoreconfHook,
 }:
 
 buildOctavePackage rec {
@@ -17,10 +19,30 @@ buildOctavePackage rec {
     sha256 = "sha256-yt39bd6EBLj7mr6EYngPfPXEMusncc9tx5So1Cp1zkM=";
   };
 
+  nativeBuildInputs = [
+    pkg-config
+    autoreconfHook
+  ];
+
   propagatedBuildInputs = [
     netcdf
   ];
 
+  # autoreconfHook provides an autoreconfPhase that is run as a
+  # preconfigurePhase, which means it runs AFTER the source is un-tarred, and
+  # before buildOctavePackage's buildPhase re-tars it up into a format for later
+  # consumption by Octave's "pkg build" command.
+  preAutoreconf = ''
+    pushd src
+    # Upstream's bootstrap script uses wget to fetch config.guess & config.sub
+    # and has them committed to the repository. We must remove them so autoreconf
+    # actually fires for our environment.
+    rm config.*
+  '';
+  postAutoreconf = ''
+    popd
+  '';
+
   meta = {
     homepage = "https://gnu-octave.github.io/packages/netcdf/";
     license = lib.licenses.gpl2Plus;

From e0630ede07535a463085ca22ee76e27b28326660 Mon Sep 17 00:00:00 2001
From: "R. Ryantm" <ryantm-bot@ryantm.com>
Date: Sun, 31 May 2026 15:38:57 +0000
Subject: [PATCH 2/2] octavePackages.netcdf: 1.0.19 -> 1.0.20

---
 pkgs/development/octave-modules/netcdf/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/octave-modules/netcdf/default.nix b/pkgs/development/octave-modules/netcdf/default.nix
index 07f29825d19f..ddb76e411052 100644
--- a/pkgs/development/octave-modules/netcdf/default.nix
+++ b/pkgs/development/octave-modules/netcdf/default.nix
@@ -10,13 +10,13 @@
 
 buildOctavePackage rec {
   pname = "netcdf";
-  version = "1.0.19";
+  version = "1.0.20";
 
   src = fetchFromGitHub {
     owner = "gnu-octave";
     repo = "octave-netcdf";
     tag = "v${version}";
-    sha256 = "sha256-yt39bd6EBLj7mr6EYngPfPXEMusncc9tx5So1Cp1zkM=";
+    sha256 = "sha256-47+8daOrPjjsVWi6Sz2V/GNK4vQ5nbGCrQmgnZRap+k=";
   };
 
   nativeBuildInputs = [