diff --git a/src/fs_attr.cpp b/src/fs_attr.cpp
index d9860f7b..6a5ea619 100644
--- a/src/fs_attr.cpp
+++ b/src/fs_attr.cpp
@@ -14,114 +14,8 @@
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
-#include <errno.h>
-#include <fcntl.h>
-#include <linux/fs.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <string>
-
-using std::string;
-
-namespace fs
-{
-  namespace attr
-  {
-    static
-    int
-    get_fs_ioc_flags(const int  fd,
-                     int       &flags)
-    {
-      return ::ioctl(fd,FS_IOC_GETFLAGS,&flags);
-    }
-
-    static
-    int
-    get_fs_ioc_flags(const string &file,
-                     int          &flags)
-    {
-      int fd;
-      int rv;
-      const int openflags = O_RDONLY|O_NONBLOCK;
-
-      fd = ::open(file.c_str(),openflags);
-      if(fd == -1)
-        return -1;
-
-      rv = get_fs_ioc_flags(fd,flags);
-      if(rv == -1)
-        {
-          int error = errno;
-          ::close(fd);
-          errno = error;
-          return -1;
-        }
-
-      return ::close(fd);
-    }
-
-    static
-    int
-    set_fs_ioc_flags(const int fd,
-                     const int flags)
-    {
-      return ::ioctl(fd,FS_IOC_SETFLAGS,&flags);
-    }
-
-    static
-    int
-    set_fs_ioc_flags(const string &file,
-                     const int     flags)
-    {
-      int fd;
-      int rv;
-      const int openflags = O_RDONLY|O_NONBLOCK;
-
-      fd = ::open(file.c_str(),openflags);
-      if(fd == -1)
-        return -1;
-
-      rv = set_fs_ioc_flags(fd,flags);
-      if(rv == -1)
-        {
-          int error = errno;
-          ::close(fd);
-          errno = error;
-          return -1;
-        }
-
-      return ::close(fd);
-    }
-
-    int
-    copy(const int fdin,
-         const int fdout)
-    {
-      int rv;
-      int flags;
-
-      rv = get_fs_ioc_flags(fdin,flags);
-      if(rv == -1)
-        return -1;
-
-      return set_fs_ioc_flags(fdout,flags);
-    }
-
-    int
-    copy(const string &from,
-         const string &to)
-    {
-      int rv;
-      int flags;
-
-      rv = get_fs_ioc_flags(from,flags);
-      if(rv == -1)
-        return -1;
-
-      return set_fs_ioc_flags(to,flags);
-    }
-  }
-}
+#ifdef __linux__
+# include "fs_attr_linux.icpp"
+#else
+# include "fs_attr_unsupported.icpp"
+#endif
diff --git a/src/fs_attr_linux.icpp b/src/fs_attr_linux.icpp
new file mode 100644
index 00000000..d9860f7b
--- /dev/null
+++ b/src/fs_attr_linux.icpp
@@ -0,0 +1,127 @@
+/*
+  Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/fs.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <string>
+
+using std::string;
+
+namespace fs
+{
+  namespace attr
+  {
+    static
+    int
+    get_fs_ioc_flags(const int  fd,
+                     int       &flags)
+    {
+      return ::ioctl(fd,FS_IOC_GETFLAGS,&flags);
+    }
+
+    static
+    int
+    get_fs_ioc_flags(const string &file,
+                     int          &flags)
+    {
+      int fd;
+      int rv;
+      const int openflags = O_RDONLY|O_NONBLOCK;
+
+      fd = ::open(file.c_str(),openflags);
+      if(fd == -1)
+        return -1;
+
+      rv = get_fs_ioc_flags(fd,flags);
+      if(rv == -1)
+        {
+          int error = errno;
+          ::close(fd);
+          errno = error;
+          return -1;
+        }
+
+      return ::close(fd);
+    }
+
+    static
+    int
+    set_fs_ioc_flags(const int fd,
+                     const int flags)
+    {
+      return ::ioctl(fd,FS_IOC_SETFLAGS,&flags);
+    }
+
+    static
+    int
+    set_fs_ioc_flags(const string &file,
+                     const int     flags)
+    {
+      int fd;
+      int rv;
+      const int openflags = O_RDONLY|O_NONBLOCK;
+
+      fd = ::open(file.c_str(),openflags);
+      if(fd == -1)
+        return -1;
+
+      rv = set_fs_ioc_flags(fd,flags);
+      if(rv == -1)
+        {
+          int error = errno;
+          ::close(fd);
+          errno = error;
+          return -1;
+        }
+
+      return ::close(fd);
+    }
+
+    int
+    copy(const int fdin,
+         const int fdout)
+    {
+      int rv;
+      int flags;
+
+      rv = get_fs_ioc_flags(fdin,flags);
+      if(rv == -1)
+        return -1;
+
+      return set_fs_ioc_flags(fdout,flags);
+    }
+
+    int
+    copy(const string &from,
+         const string &to)
+    {
+      int rv;
+      int flags;
+
+      rv = get_fs_ioc_flags(from,flags);
+      if(rv == -1)
+        return -1;
+
+      return set_fs_ioc_flags(to,flags);
+    }
+  }
+}
diff --git a/src/fs_attr_unsupported.icpp b/src/fs_attr_unsupported.icpp
new file mode 100644
index 00000000..68c87b79
--- /dev/null
+++ b/src/fs_attr_unsupported.icpp
@@ -0,0 +1,37 @@
+/*
+  Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include <errno.h>
+
+namespace fs
+{
+  namespace attr
+  {
+    int
+    copy(const int fdin,
+         const int fdout)
+    {
+      return ENOTSUP;
+    }
+
+    int
+    copy(const string &from,
+         const string &to)
+    {
+      return ENOTSUP;
+    }
+  }
+}