From b164cc2fa6e1a9f11dd31e46615cb9ec6a507daa Mon Sep 17 00:00:00 2001
From: Moritz Angermann <moritz.angermann@gmail.com>
Date: Sun, 19 Nov 2023 08:31:29 +0800
Subject: [PATCH] nix: fix lib:support for armv7a (#3394)

---
 flake.nix | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/flake.nix b/flake.nix
index b56756922f..9c6bb3a226 100644
--- a/flake.nix
+++ b/flake.nix
@@ -253,7 +253,17 @@
                 # we also do not want to have any dependencies listed (especially no rts!)
                 enableStatic = false;
 
-                setupBuildFlags = p.component.setupBuildFlags ++ map (x: "--ghc-option=${x}") [ "-shared" "-o" "libsupport.so" ];
+                # This used to work with 8.10.7...
+                # setupBuildFlags = p.component.setupBuildFlags ++ map (x: "--ghc-option=${x}") [ "-shared" "-o" "libsupport.so" ];
+                # ... but now with 9.6+
+                # we have to do the -shared thing by hand.
+                postBuild = ''
+                  armv7a-unknown-linux-androideabi-ghc -shared -o libsupport.so \
+                    -optl-Wl,-u,setLineBuffering \
+                    -optl-Wl,-u,pipe_std_to_socket \
+                    dist/build/*.a
+                '';
+
                 postInstall = ''
 
                   mkdir -p $out/_pkg