temporarily use csqlite as-is

Author: stevensJourney

Package.resolved

@@ -1,4 +1,4 @@
-// swift-tools-version: 5.9
+// swift-tools-version: 6.1
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
@@ -77,7 +77,26 @@ let package = Package(
         ),
     ],
     dependencies: conditionalDependencies + [
-        .package(url: "git@github.com:powersync-ja/CSQLite.git", revision: "init")
+        .package(
+            url: "https://github.com/sbooth/CSQLite.git",
+            from: "3.50.4",
+            traits: [
+                .defaults,
+                // CSQLite uses THREADSAFE=0 by default, which breaks PowerSync because we're using SQLite on
+                // multiple threads (it can lead to race conditions when closing connections sharing resources
+                // like shared memory, causing crashes).
+                // THREADSAFE=2 overrides the default, and is safe to use as long as a single SQLite connection
+                // is not shared between threads.
+                // TODO: Technically, we should not use .defaults because there's a logical conflict between
+                // the threadsafe options. Instead, we should spell out all defaults again and remove that
+                // thread-safety option.
+                // However, despite the docs explicitly saying something else, it looks like there's no way to
+                // disable default traits anyway (XCode compiles sqlite3.c with the default option even without
+                // .defaults being included here).
+                "THREADSAFE_2",
+                "ENABLE_SESSION"
+            ]
+        )
     ],
     targets: [
         // Targets are the basic building blocks of a package, defining a module or a test suite.