Add Musl import support for static linking

Package.swift

@@ -4,11 +4,11 @@ import PackageDescription
 let package = Package(
     name: "swiftpm-pathkit",
     products: [
-        .library(name: "Path", targets: ["Path"]),
+        .library(name: "PathKit", targets: ["PathKit"]),
     ],
     targets: [
-        .target(name: "Path", path: "Sources"),
-        .testTarget(name: "PathTests", dependencies: ["Path"]),
+        .target(name: "PathKit", path: "Sources"),
+        .testTarget(name: "PathTests", dependencies: ["PathKit"]),
     ],
     swiftLanguageVersions: [.v4, .v4_2, .version("5")]
 )

README.md

@@ -12,7 +12,7 @@ results.
 ## Examples
 
 ```swift
-import Path
+import PathKit
 
 // convenient static members
 let home = Path.home

Sources/Path+FileManager.swift

@@ -1,6 +1,8 @@
 import Foundation
-#if os(Linux)
+#if canImport(Glibc)
 import Glibc
+#elseif canImport(Musl)
+import Musl
 #endif
 
 public extension Pathish {

Sources/Path.swift

@@ -1,10 +1,13 @@
 import Foundation
-#if !os(Linux)
+#if canImport(Darwin)
 import func Darwin.realpath
 let _realpath = Darwin.realpath
-#else
+#elseif canImport(Glibc)
 import func Glibc.realpath
 let _realpath = Glibc.realpath
+#elseif canImport(Musl)
+import func Musl.realpath
+let _realpath = Musl.realpath
 #endif
 
 public typealias PathStruct = Path

Sources/PathToBool.swift

@@ -1,8 +1,10 @@
 import Foundation
-#if os(Linux)
-import func Glibc.access
-#else
+#if canImport(Darwin)
 import Darwin
+#elseif canImport(Glibc)
+import func Glibc.access
+#elseif canImport(Musl)
+import func Musl.access
 #endif
 
 public extension Pathish {

Tests/PathTests/PathTests+ls().swift

@@ -1,5 +1,5 @@
 import XCTest
-import Path
+import PathKit
 
 extension PathTests {
     func testFindMaxDepth1() throws {

Tests/PathTests/PathTests.swift

@@ -1,4 +1,4 @@
-@testable import Path
+@testable import PathKit
 import func XCTest.XCTAssertEqual
 import Foundation
 import XCTest

Tests/PathTests/TemporaryDirectory.swift

@@ -1,4 +1,4 @@
-@testable import Path
+@testable import PathKit
 import Foundation
 
 class TemporaryDirectory {

Tests/PathTests/etc.swift

@@ -1,5 +1,5 @@
 import XCTest
-import Path
+import PathKit
 
 #if swift(>=5.3)
 func XCTAssertEqual<P: Pathish>(_ set1: Set<Path>, _ set2: Set<Path>, _ message: @autoclosure () -> String = "", file: StaticString = #filePath, line: UInt = #line, relativeTo: P) {