along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-/* This is a private header, never even think of including this directly! */
+/* This is a private header; never even think of including this directly! */
+
+#if __INCLUDE_LEVEL__ <= 1
+#error "Do not include _sd-common.h directly; it is a private header."
+#endif
#ifndef _sd_printf_
# if __GNUC__ >= 4
# define _sd_packed_ __attribute__((packed))
#endif
-#ifndef _sd_stringify
-# define _sd_xstringify(x) #x
-# define _sd_stringify(x) _sd_xstringify(x)
+#ifndef _sd_pure_
+# define _sd_pure_ __attribute__((pure))
+#endif
+
+#ifndef _SD_STRINGIFY
+# define _SD_XSTRINGIFY(x) #x
+# define _SD_STRINGIFY(x) _SD_XSTRINGIFY(x)
+#endif
+
+#ifndef _SD_BEGIN_DECLARATIONS
+# ifdef __cplusplus
+# define _SD_BEGIN_DECLARATIONS \
+ extern "C" { \
+ struct __useless_struct_to_allow_trailing_semicolon__
+# else
+# define _SD_BEGIN_DECLARATIONS \
+ struct __useless_struct_to_allow_trailing_semicolon__
+# endif
+#endif
+
+#ifndef _SD_END_DECLARATIONS
+# ifdef __cplusplus
+# define _SD_END_DECLARATIONS \
+ } \
+ struct __useless_struct_to_allow_trailing_semicolon__
+# else
+# define _SD_END_DECLARATIONS \
+ struct __useless_struct_to_allow_trailing_semicolon__
+# endif
#endif
#endif