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-rw-r--r--job.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/job.c b/job.c
index 2ae14c0..43453b8 100644
--- a/job.c
+++ b/job.c
@@ -47,6 +47,10 @@ char default_shell[] = "/bin/sh";
#ifdef HAVE_WAITPID
#define WAIT_NOHANG(status) waitpid (-1, (status), WNOHANG)
+/* The second arg to `waitpid' is always an `int *'.
+ The system might support `union wait' for compatibility in calls to
+ `wait3' or `wait', but most such systems don't support it for `waitpid'. */
+#undef HAVE_UNION_WAIT
#else /* Don't have waitpid. */
#ifdef HAVE_WAIT3
#ifndef wait3