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osdep.h: Always include <sys/signal.h> if it exists

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Regularize our handling of <sys/signal.h>: currently we include it in
osdep.h, but only for OpenBSD, and we include it without an ifdef
guard in a couple of C files.  This causes problems for Haiku, which
doesn't have that header.

Instead, check in configure whether sys/signal.h exists, and if it
does then always include it from osdep.h.

Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200703145614.16684-5-peter.maydell@linaro.org
[PMM: Expanded commit message; rename to HAVE_SYS_SIGNAL_H]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
David CARLIER
2020-07-13 14:36:09 +01:00
committed by Peter Maydell
parent 195588ccd5
commit 2a4b472c3c
4 changed files with 11 additions and 3 deletions
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2
include/qemu/osdep.h
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@ -104,7 +104,7 @@ extern int daemon(int, int);
#include <setjmp.h>
#include <signal.h>
#ifdef __OpenBSD__
#ifdef HAVE_SYS_SIGNAL_H
#include <sys/signal.h>
#endif