From 2c3968556b93e02de4ea8e03b4e383b289363bb7 Mon Sep 17 00:00:00 2001
From: Philipp Middendorf <philipp.middendorf@desy.de>
Date: Wed, 15 Apr 2026 08:03:18 +0200
Subject: [PATCH] crystfel: fix dead source URL

The website for "mosflm", an analysis tool required by CrystFEL, has
gone 404. The author is now using his own personal web site to host his
application binary.
---
 .../science/physics/crystfel/default.nix        | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/pkgs/applications/science/physics/crystfel/default.nix b/pkgs/applications/science/physics/crystfel/default.nix
index 00c8fc0c4a17..6dbfa8802315 100644
--- a/pkgs/applications/science/physics/crystfel/default.nix
+++ b/pkgs/applications/science/physics/crystfel/default.nix
@@ -86,19 +86,18 @@ let
       src =
         if stdenv.hostPlatform.isDarwin then
           fetchurl {
-            url = "https://www.mrc-lmb.cam.ac.uk/mosflm/mosflm/ver${
+            url = "https://www.mrc-lmb.cam.ac.uk/harry/imosflm/ver${
               builtins.replaceStrings [ "." ] [ "" ] version
-            }/pre-built/mosflm-osx-64-noX11.zip";
-            sha256 = "1da5wimv3kl8bccp49j69vh8gi28cn7axg59lrmb38s68c618h7j";
+            }/downloads/mosflm-${version}-osx-64.zip";
+            hash = "sha256-0sXgA3zSIjhy9+zTiv+K/51yZsIgGorMtKVjdRjW+AM=";
           }
         else
           fetchurl {
-            url = "https://www.mrc-lmb.cam.ac.uk/mosflm/mosflm/ver${
+            url = "https://www.mrc-lmb.cam.ac.uk/harry/imosflm/ver${
               builtins.replaceStrings [ "." ] [ "" ] version
-            }/pre-built/mosflm-linux-64-noX11.zip";
-            hash = "sha256:1f2qins5kaz5v6mkaclncqpirx3mlz177ywm13py9p6s9mk99g32";
+            }/downloads/imosflm-${version}-linux-64.zip";
+            hash = "sha256-2we0K09W31LKgn9SHLGti50EA/zhbX+CWWuQGCSKW18=";
           };
-      mosflmBinary = if stdenv.hostPlatform.isDarwin then "bin/mosflm" else "mosflm-linux-64-noX11";
     in
     stdenv.mkDerivation {
       pname = "mosflm";
@@ -112,13 +111,11 @@ let
         makeWrapper
       ];
 
-      sourceRoot = ".";
-
       # mosflm statically links against its own libccp4, which as the syminfo.lib environment variable problem.
       # Here, we circumvent it by creating a little wrapper script that calls mosflm after setting the SYMINFO variable.
       installPhase = ''
         mkdir -p $out/bin
-        cp ${mosflmBinary} $out/bin/mosflm-raw
+        cp bin/mosflm $out/bin/mosflm-raw
         makeWrapper $out/bin/mosflm-raw $out/bin/mosflm --set SYMINFO ${libccp4}/share/syminfo.lib --add-flags -n
       '';
     };