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Don't use <sys/signal.h>
This legacy header appears to be unused. Removing its includes avoids numerous warnings when compiling with musl libc: /usr/include/sys/signal.h:1:2: warning: #warning redirecting incorrect #include <sys/signal.h> to <signal.h> [-Wcpp]
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0420ce5cc9
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@ -198,7 +198,6 @@ AC_CHECK_HEADERS(sys/fmutex.h)
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AC_CHECK_HEADERS(sys/ioctl.h sys/sockio.h)
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AC_CHECK_HEADERS(sys/resource.h)
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AC_CHECK_HEADERS(sys/select.h)
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AC_CHECK_HEADERS(sys/signal.h)
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AC_CHECK_HEADERS(sys/socket.h)
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AC_CHECK_HEADERS(sys/time.h)
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AC_CHECK_HEADERS(sys/utsname.h)
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@ -7,9 +7,6 @@
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#include <errno.h>
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#include <signal.h>
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#include <string.h> /* FreeBSD FD_ZERO() macro calls bzero() */
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#ifdef HAVE_SYS_SIGNAL_H
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#include <sys/signal.h>
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#endif
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#ifdef __GNU__ /* For GNU Hurd bug workaround in set_handlers() */
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#include <sys/stat.h> /* OS/2 needs this after sys/types.h */
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#endif
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@ -7,18 +7,10 @@
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#include <limits.h> /* may contain PIPE_BUF definition on some systems */
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#endif
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#ifdef HAVE_SYS_SIGNAL_H
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#include <sys/signal.h> /* may contain SA_RESTART */
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#endif
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#ifdef HAVE_STDDEF_H
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#include <stddef.h> /* may contain offsetof() */
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#endif
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#ifndef SA_RESTART
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#define SA_RESTART 0
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#endif
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#ifndef PIPE_BUF
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#define PIPE_BUF 512 /* POSIX says that. -- Mikulas */
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#endif
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@ -15,9 +15,6 @@
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#ifdef HAVE_SYS_IOCTL_H
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#include <sys/ioctl.h>
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#endif
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#ifdef HAVE_SYS_SIGNAL_H
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#include <sys/signal.h>
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#endif
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#include <sys/types.h>
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h> /* Need to be after sys/types.h */
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@ -8,9 +8,6 @@
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#include <signal.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_SYS_SIGNAL_H
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#include <sys/signal.h>
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#endif
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#include <sys/types.h>
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#ifdef HAVE_SYS_WAIT_H
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#include <sys/wait.h>
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@ -8,9 +8,6 @@
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h> /* NetBSD flavour */
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#ifdef HAVE_SYS_SIGNAL_H
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#include <sys/signal.h>
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#endif
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h> /* OS/2 needs this after sys/types.h */
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#endif
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