From 74b8c98aafd0342b14e719f4fe64f8b15364d32f Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Tue, 12 Sep 2023 18:44:43 +0100
Subject: [PATCH] kludge fix openssl build

---
 overlay.nix | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/overlay.nix b/overlay.nix
index 7f54b61d..a55ce1fe 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -170,5 +170,18 @@ extraPkgs // {
     '';
   });
 
+  openssl = prev.openssl.overrideAttrs (o: {
+    # we want to apply
+    # https://patch-diff.githubusercontent.com/raw/openssl/openssl/pull/20273.patch";
+    # which disables overriding the -march cflags to the wrong values,
+    # but openssl is used for bootstrapping so that's easier said than
+    # done. Do it the ugly way..
+    postPatch =
+      o.postPatch
+      + (with final;
+        lib.optionalString (stdenv.buildPlatform != stdenv.hostPlatform)
+          "\nsed -i.bak 's/linux.*-mips/linux-mops/' Configure\n");
+  });
+
   pppBuild = prev.ppp;
 }