test/clone.c: minor fixup

Another bunch of patches from John Hughes merged:
signal.c:
+ SVR4 printcontext(): sigset_t != sigset_t*
+ getcontext returns a value, so print on exit of syscall
+ add UC_FP to ucontext_flags for OS writers that can't spell
+ sys_signal(): special case SIG_{ERR,DFL,IGN}
+ decode_subcall(): only do subcall range checking when needed
bunch of UnixWare updates
aclocal.m4, acconfig.h, configure.in: add test for long long type

1 files changed, 1 insertions, 1 deletions

diff --git a/strace.c b/strace.c
index 4a46877..f96eaa0 100644
--- a/strace.c
+++ b/strace.c
@@ -660,7 +660,7 @@ int attaching;
 		}
 	}
 	/* Stop the process so that we own the stop. */
-	if (IOCTL(tcp->pfd, PIOCSTOP, NULL) < 0) {
+	if (IOCTL(tcp->pfd, PIOCSTOP, (char *)NULL) < 0) {
 		perror("strace: PIOCSTOP");
 		return -1;
 	}