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--- ksh-openbsd_cvs/jobs.c 2010-02-23 12:49:17.000000000 +0100
+++ ksh-openbsd_cvs.new/jobs.c 2010-04-01 21:01:24.133232595 +0200
@@ -21,6 +21,19 @@
#include <sys/time.h>
#include <sys/resource.h>
#include "tty.h"
+#include "strlcpy.h"
+
+#ifndef CHILD_MAX
+# if defined(HAVE_SYSCONF) && defined(_SC_CHILD_MAX)
+# define CHILD_MAX sysconf(_SC_CHILD_MAX)
+# else /* _SC_CHILD_MAX */
+# ifdef _POSIX_CHILD_MAX
+# define CHILD_MAX ((_POSIX_CHILD_MAX) * 2)
+# else /* _POSIX_CHILD_MAX */
+# define CHILD_MAX 20
+# endif /* _POSIX_CHILD_MAX */
+# endif /* _SC_CHILD_MAX */
+#endif /* !CHILD_MAX */
/* Order important! */
#define PRUNNING 0
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