From e7e90b72fd3161c5d55fed49e100781dfa3e9408 Mon Sep 17 00:00:00 2001
From: Mattia Rizzolo <mattia@mapreri.org>
Date: Fri, 3 Oct 2014 14:05:01 +0000
Subject: Imported Upstream version 0.84

---
 include/sanei_signal.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 include/sanei_signal.h

(limited to 'include/sanei_signal.h')

diff --git a/include/sanei_signal.h b/include/sanei_signal.h
new file mode 100644
index 0000000..0033c1c
--- /dev/null
+++ b/include/sanei_signal.h
@@ -0,0 +1,50 @@
+#ifdef HAVE_SIGPROCMASK
+# define SIGACTION	sigaction
+#else
+
+/* Just enough backwards compatibility that we get by in the backends
+   without making handstands.  */
+# ifdef sigset_t
+#  undef sigset_t
+# endif
+# ifdef sigemptyset
+#  undef sigemptyset
+# endif
+# ifdef sigfillset
+#  undef sigfillset
+# endif
+# ifdef sigaddset
+#  undef sigaddset
+# endif
+# ifdef sigdelset
+#  undef sigdelset
+# endif
+# ifdef sigprocmask
+#  undef sigprocmask
+# endif
+# ifdef SIG_BLOCK
+#  undef SIG_BLOCK
+# endif
+# ifdef SIG_UNBLOCK
+#  undef SIG_UNBLOCK
+# endif
+# ifdef SIG_SETMASK
+#  undef SIG_SETMASK
+# endif
+
+# define sigset_t		int
+# define sigemptyset(set)	do { *(set) = 0; } while (0)
+# define sigfillset(set)	do { *(set) = ~0; } while (0)
+# define sigaddset(set,signal)	do { *(set) |= sigmask (signal); } while (0)
+# define sigdelset(set,signal)	do { *(set) &= ~sigmask (signal); } while (0)
+# define sigaction(sig,new,old)	sigvec (sig,new,old)
+
+  /* Note: it's not safe to just declare our own "struct sigaction" since
+     some systems (e.g., some versions of OpenStep) declare that structure,
+     but do not implement sigprocmask().  Hard to believe, aint it?  */
+# define SIGACTION		sigvec
+# define SIG_BLOCK	1
+# define SIG_UNBLOCK	2
+# define SIG_SETMASK	3
+#endif /* !HAVE_SIGPROCMASK */
+
-- 
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