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sigreturn(2): Remove ancient compatibility warning about 4.2BSD.

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The HISTORY subsection still says that sigreturn() was added in 4.3BSD.
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jilles 2013-05-25 13:59:40 +00:00
parent dcb48cfa2b
commit 843b520e07
1 changed files with 0 additions and 4 deletions
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lib/libc/sys/sigreturn.2
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@ -56,10 +56,6 @@ Execution resumes at the specified pc.
This system call is used by the trampoline code and
.Xr longjmp 3
when returning from a signal to the previously executing program.
.Sh NOTES
This system call is not available in
.Bx 4.2
hence it should not be used if backward compatibility is needed.
.Sh RETURN VALUES
If successful, the system call does not return.
Otherwise, a value of -1 is returned and