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+/* posixjmp.h -- wrapper for setjmp.h with changes for POSIX systems. */
+
+/* Copyright (C) 1987,1991-2015 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/>.
+*/
+
+#ifndef _POSIXJMP_H_
+#define _POSIXJMP_H_
+
+#include <setjmp.h>
+
+/* This *must* be included *after* config.h */
+
+#if defined (HAVE_POSIX_SIGSETJMP)
+# define procenv_t sigjmp_buf
+
+# define setjmp_nosigs(x) sigsetjmp((x), 0)
+# define setjmp_sigs(x) sigsetjmp((x), 1)
+
+# define _rl_longjmp(x, n) siglongjmp((x), (n))
+# define sh_longjmp(x, n) siglongjmp((x), (n))
+#else
+# define procenv_t jmp_buf
+
+# define setjmp_nosigs setjmp
+# define setjmp_sigs setjmp
+
+# define _rl_longjmp(x, n) longjmp((x), (n))
+# define sh_longjmp(x, n) longjmp((x), (n))
+#endif
+
+#endif /* _POSIXJMP_H_ */