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+/* unwind_prot.h - Macros and functions for hacking unwind protection. */
+
+/* Copyright (C) 1993-2020 Free Software Foundation, Inc.
+
+ This file is part of GNU Bash, the Bourne Again SHell.
+
+ Bash is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Bash is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bash. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#if !defined (_UNWIND_PROT_H)
+#define _UNWIND_PROT_H
+
+extern void uwp_init PARAMS((void));
+
+/* Run a function without interrupts. */
+extern void begin_unwind_frame PARAMS((char *));
+extern void discard_unwind_frame PARAMS((char *));
+extern void run_unwind_frame PARAMS((char *));
+extern void add_unwind_protect (); /* Not portable to arbitrary C99 hosts. */
+extern void remove_unwind_protect PARAMS((void));
+extern void run_unwind_protects PARAMS((void));
+extern void clear_unwind_protect_list PARAMS((int));
+extern int have_unwind_protects PARAMS((void));
+extern int unwind_protect_tag_on_stack PARAMS((const char *));
+extern void uwp_init PARAMS((void));
+
+/* Define for people who like their code to look a certain way. */
+#define end_unwind_frame()
+
+/* How to protect a variable. */
+#define unwind_protect_var(X) unwind_protect_mem ((char *)&(X), sizeof (X))
+extern void unwind_protect_mem PARAMS((char *, int));
+
+/* Backwards compatibility */
+#define unwind_protect_int unwind_protect_var
+#define unwind_protect_short unwind_protect_var
+#define unwind_protect_string unwind_protect_var
+#define unwind_protect_pointer unwind_protect_var
+#define unwind_protect_jmp_buf unwind_protect_var
+
+#endif /* _UNWIND_PROT_H */