# define NULL 0
#endif
-#if !defined (__STRING)
+#if !defined (CPP_STRING)
# if defined (HAVE_STRINGIZE)
-# define __STRING(x) #x
+# define CPP_STRING(x) #x
# else
-# define __STRING(x) "x"
+# define CPP_STRING(x) "x"
# endif /* !HAVE_STRINGIZE */
#endif /* !__STRING */
# define _(x) x
#endif
+#include <signal.h>
+
+extern void _malloc_block_signals __P((sigset_t *, sigset_t *));
+extern void _malloc_unblock_signals __P((sigset_t *, sigset_t *));
+
#endif /* _IMALLOC_H */