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Date: Fri,  5 Apr 2019 12:26:17 -0500
From: Bobby Bingham <>
Subject: [PATCH] fix signature of function accepted by makecontext

This parameter was incorrectly declared to be a pointer to a function
accepting zero parameters.  The intent of makecontext is that it is
possible to pass integer parameters to the function, so this should
have been a pointer to a function accepting an unspecified set of
 include/ucontext.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/ucontext.h b/include/ucontext.h
index 3bb776ed..0f757125 100644
--- a/include/ucontext.h
+++ b/include/ucontext.h
@@ -15,7 +15,7 @@ extern "C" {
 struct __ucontext;
 int  getcontext(struct __ucontext *);
-void makecontext(struct __ucontext *, void (*)(void), int, ...);
+void makecontext(struct __ucontext *, void (*)(), int, ...);
 int  setcontext(const struct __ucontext *);
 int  swapcontext(struct __ucontext *, const struct __ucontext *);

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