From 4171e2999505a42f70f2dc07e8b2573d5c3f84eb Mon Sep 17 00:00:00 2001
From: AnErrupTion <anerruption@disroot.org>
Date: Thu, 23 Oct 2025 22:15:43 +0200
Subject: [PATCH] Fix build error when runit service symlink already exists

Signed-off-by: AnErrupTion <anerruption@disroot.org>
---
 build.zig | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/build.zig b/build.zig
index cb54f55..b8e1b8d 100644
--- a/build.zig
+++ b/build.zig
@@ -283,7 +283,13 @@ fn install_service(allocator: std.mem.Allocator, patch_map: PatchMap) !void {
             const patched_run = try patchFile(allocator, "res/ly-runit-service/run", patch_map);
             try installText(patched_run, service_dir, service_path, "run", .{ .mode = 0o755 });
 
-            try std.fs.cwd().symLink("/run/runit/supervise.ly", supervise_path, .{});
+            std.fs.cwd().symLink("/run/runit/supervise.ly", supervise_path, .{}) catch |err| {
+                if (err == error.PathAlreadyExists) {
+                    std.debug.print("warn: /run/runit/supervise.ly already exists as a symbolic link.\n", .{});
+                } else {
+                    return err;
+                }
+            };
             std.debug.print("info: installed symlink /run/runit/supervise.ly\n", .{});
         },
         .s6 => {