move pffft

Package.swift

@@ -9,35 +9,22 @@ let package = Package(
         // Products define the executables and libraries a package produces, making them visible to other packages.
         .library(
             name: "EcgSynKit",
-            targets: ["EcgSynKit"]),
+            targets: ["EcgSynKit"]
+        ),
     ],
     dependencies: [
         .package(url: "https://github.com/apple/swift-algorithms", from: "1.2.0"),
-        // .package(url: "https://github.com/AudioKit/KissFFT.git", from: "1.0.0")
-        .package(path: "./Packages/KissFFT/")
+        .package(path: "./Packages/KissFFT/"),
+        .package(path: "./Packages/PFFFT/"),
     ],
     targets: [
-        // Targets are the basic building blocks of a package, defining a module or a test suite.
-        // Targets can depend on other targets in this package and products from dependencies.
         .target(
-          name: "PFFFT",
-          publicHeadersPath: "include",
-            cSettings: [
-                .define("PFFFT_SCALVEC_ENABLED", to: "1"),
-                .define("_USE_MATH_DEFINES"),
-                .define("NDEBUG"),
-                .unsafeFlags(["-O3", "-std=c99"]),
-                .unsafeFlags(["-mavx"], .when(platforms: [.linux, .macOS])),
+            name: "EcgSynKit",
+            dependencies: [
+                .product(name: "PFFFT", package: "PFFFT"),
+                .product(name: "Algorithms", package: "swift-algorithms"),
             ]
         ),
-        .target(
-          name: "EcgSynKit",
-          dependencies: [
-            .target(name: "PFFFT"),
-            .product(name: "Algorithms", package: "swift-algorithms"),
-            .product(name: "KissFFT", package: "kissfft")
-          ]
-        ),
         .testTarget(
             name: "EcgSynKitTests",
             dependencies: ["EcgSynKit"]