From b233246a4e7bb7a2ac9c1f95478e70ae91fe0817 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Mon, 15 Oct 2018 14:46:55 +0200
Subject: extra/mono: disable atomics on i486

---
 extra/mono/PKGBUILD | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 extra/mono/PKGBUILD

diff --git a/extra/mono/PKGBUILD b/extra/mono/PKGBUILD
new file mode 100644
index 00000000..bccd03b7
--- /dev/null
+++ b/extra/mono/PKGBUILD
@@ -0,0 +1,14 @@
+if [ "$CARCH" = 'i486' ]; then
+  # these atomics are unavailable on i486, but that is not detected (?)
+  eval "$(
+    declare -f prepare | \
+      sed '
+        /^}$/ i \
+          sed -i '"'"' \
+            /#define BROKEN_64BIT_ATOMICS_INTRINSIC 1/ i \\\
+            #endif \\\
+            #if true \
+          '"'"' mono/utils/atomic.h 
+      '
+  )"
+fi
-- 
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