Merge pull request #215 from 3405691582/openbsd

OpenBSD support.

Author: glessard

Sources/System/Internals/RawBuffer.swift

@@ -80,7 +80,13 @@ extension _RawBuffer {
     internal static func create(minimumCapacity: Int) -> Storage {
       Storage.create(
         minimumCapacity: minimumCapacity,
-        makingHeaderWith: { $0.capacity }
+        makingHeaderWith: {
+#if os(OpenBSD)
+          minimumCapacity
+#else
+          $0.capacity
+#endif
+        }
       ) as! Storage
     }
   }

Sources/System/Internals/Syscalls.swift

@@ -191,7 +191,7 @@ internal func system_confstr(
 internal let SYSTEM_AT_REMOVE_DIR = AT_REMOVEDIR
 internal let SYSTEM_DT_DIR = DT_DIR
 internal typealias system_dirent = dirent
-#if os(Linux) || os(Android) || os(FreeBSD)
+#if os(Linux) || os(Android) || os(FreeBSD) || os(OpenBSD)
 internal typealias system_DIRPtr = OpaquePointer
 #else
 internal typealias system_DIRPtr = UnsafeMutablePointer<DIR>