From ed74fcf14b477bdf2d96fd80e514cd17c54fbdfe Mon Sep 17 00:00:00 2001
From: Tuomas Tynkkynen <tuomas@tuxera.com>
Date: Fri, 25 Mar 2016 22:15:57 +0200
Subject: [PATCH] libsigsegv: Add Aarch64 patch

---
 pkgs/development/libraries/libsigsegv/aarch64.patch | 12 ++++++++++++
 pkgs/development/libraries/libsigsegv/default.nix   |  6 ++++++
 2 files changed, 18 insertions(+)
 create mode 100644 pkgs/development/libraries/libsigsegv/aarch64.patch

diff --git a/pkgs/development/libraries/libsigsegv/aarch64.patch b/pkgs/development/libraries/libsigsegv/aarch64.patch
new file mode 100644
index 000000000000..7bb48a230cee
--- /dev/null
+++ b/pkgs/development/libraries/libsigsegv/aarch64.patch
@@ -0,0 +1,12 @@
+diff --git a/configure b/configure
+index 6c4e868..0298e19 100755
+--- a/configure
++++ b/configure
+@@ -14501,6 +14501,7 @@ else
+ 
+     case "$host_cpu" in
+             a29k | \
++      aarch64* | \
+       alpha* | \
+       arc | \
+       arm* | strongarm* | xscale* | \
diff --git a/pkgs/development/libraries/libsigsegv/default.nix b/pkgs/development/libraries/libsigsegv/default.nix
index be3cbe39a302..3353fbf9e8d9 100644
--- a/pkgs/development/libraries/libsigsegv/default.nix
+++ b/pkgs/development/libraries/libsigsegv/default.nix
@@ -8,6 +8,12 @@ stdenv.mkDerivation rec {
     sha256 = "16hrs8k3nmc7a8jam5j1fpspd6sdpkamskvsdpcw6m29vnis8q44";
   };
 
+  # Based on https://github.com/davidgfnet/buildroot-Os/blob/69fe6065b9dd1cb4dcc0a4b554e42cc2e5bd0d60/package/libsigsegv/libsigsegv-0002-fix-aarch64-build.patch
+  # but applied directly to configure since we can't use autoreconf while bootstrapping.
+  patches = if stdenv.isAarch64 || stdenv.cross.arch or "" == "aarch64"
+    then [ ./aarch64.patch ]
+    else null; # TODO: change to lib.optional on next mass rebuild
+
   # https://github.com/NixOS/nixpkgs/issues/6028
   doCheck = false;