fs_path.h (filesystem_error::~filesystem_error): Declare.

	* include/experimental/fs_path.h (filesystem_error::~filesystem_error):
	Declare.
	* src/filesystem/path.cc (filesystem_error::~filesystem_error):
	Define.

From-SVN: r222720

libstdc++-v3/ChangeLog

 2015-05-02  Jonathan Wakely  <jwakely@redhat.com>
 
+	* include/experimental/fs_path.h (filesystem_error::~filesystem_error):
+	Declare.
+	* src/filesystem/path.cc (filesystem_error::~filesystem_error):
+	Define.
+
 	PR libstdc++/65978
 	* include/std/tuple (forward_as_tuple, tie): Add constexpr.
 	* testsuite/20_util/tuple/creation_functions/constexpr.cc: Uncomment

libstdc++-v3/include/experimental/fs_path.h

@@ -531,6 +531,8 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
     : system_error(__ec, __what_arg), _M_path1(__p1), _M_path2(__p2)
     { }
 
+    ~filesystem_error();
+
     const path& path1() const noexcept { return _M_path1; }
     const path& path2() const noexcept { return _M_path2; }
     const char* what() const noexcept { return _M_what.c_str(); }

libstdc++-v3/src/filesystem/path.cc

@@ -26,6 +26,8 @@
 
 using std::experimental::filesystem::path;
 
+std::experimental::filesystem::filesystem_error::~filesystem_error() = default;
+
 constexpr path::value_type path::preferred_separator;
 
 path&