From f3f50181e309e2b82a64fb92794a1056fb11e37e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Aleix=20Bon=C3=A9?= <aleix.boneribo@bsc.es>
Date: Tue, 2 Dec 2025 15:03:46 +0100
Subject: [PATCH] Fix papi cross compilation

---
 overlay.nix           |  1 +
 pkgs/papi/default.nix | 12 ++++++++++++
 2 files changed, 13 insertions(+)
 create mode 100644 pkgs/papi/default.nix

diff --git a/overlay.nix b/overlay.nix
index 8ffb4bcd..65a5851b 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -48,6 +48,7 @@ let
     osumb = callPackage ./pkgs/osu/default.nix { };
     ovni = callPackage ./pkgs/ovni/default.nix { };
     ovniGit = final.ovni.override { useGit = true; };
+    papi = callPackage ./pkgs/papi/default.nix { papi = prev.papi; };
     paraverKernel = callPackage ./pkgs/paraver/kernel.nix { };
     prometheus-slurm-exporter = prev.callPackage ./pkgs/slurm-exporter/default.nix { };
     #pscom = callPackage ./pkgs/parastation/pscom.nix { }; # Unmaintaned
diff --git a/pkgs/papi/default.nix b/pkgs/papi/default.nix
new file mode 100644
index 00000000..0ad8c43f
--- /dev/null
+++ b/pkgs/papi/default.nix
@@ -0,0 +1,12 @@
+{
+  stdenv,
+  papi,
+}:
+
+if stdenv.hostPlatform == stdenv.buildPlatform then
+  papi
+else
+  # ffsll must be specified for cross compile
+  papi.overrideAttrs (old: {
+    configureFlags = (old.configureFlags or [ ]) ++ [ "--with-ffsll" ];
+  })