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authorUlrich Drepper <drepper@redhat.com>2000-02-24 22:31:08 +0000
committerUlrich Drepper <drepper@redhat.com>2000-02-24 22:31:08 +0000
commitc3fb74d389db31b189fbaab2370bdbb3a8f2c652 (patch)
treeb416a868d939001c63c1c1d103798550d9302730 /posix/sys/wait.h
parent230232e5f8aec363bbbab90b52fd21e046fee0e9 (diff)
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Update.
* posix/sys/wait.h: Handle definitions duplicated in stdlib.h correctly. * stdlib/stdlib.h: Handle definition of wait macros correctly.
Diffstat (limited to 'posix/sys/wait.h')
-rw-r--r--posix/sys/wait.h44
1 files changed, 22 insertions, 22 deletions
diff --git a/posix/sys/wait.h b/posix/sys/wait.h
index cccbcb8931..81b0eb429d 100644
--- a/posix/sys/wait.h
+++ b/posix/sys/wait.h
@@ -34,61 +34,61 @@ typedef __pid_t pid_t;
# define __pid_t_defined
#endif
+/* These macros could also be defined int <stdlib.h>. */
+#ifndef _STDLIB_H
/* This will define the `W*' macros for the flag
bits to `waitpid', `wait3', and `wait4'. */
-#include <bits/waitflags.h>
+# include <bits/waitflags.h>
-#ifdef __USE_BSD
+# ifdef __USE_BSD
/* Lots of hair to allow traditional BSD use of `union wait'
as well as POSIX.1 use of `int' for the status word. */
-# if defined __GNUC__ && !defined __cplusplus
-# define __WAIT_INT(status) \
+# if defined __GNUC__ && !defined __cplusplus
+# define __WAIT_INT(status) \
(__extension__ ({ union { __typeof(status) __in; int __i; } __u; \
__u.__in = (status); __u.__i; }))
-# else
-# define __WAIT_INT(status) (*(int *) &(status))
-# endif
+# else
+# define __WAIT_INT(status) (*(int *) &(status))
+# endif
/* This is the type of the argument to `wait'. The funky union
causes redeclarations with ether `int *' or `union wait *' to be
allowed without complaint. __WAIT_STATUS_DEFN is the type used in
the actual function definitions. */
-# if !defined __GNUC__ || __GNUC__ < 2 || defined __cplusplus
-# define __WAIT_STATUS void *
-# define __WAIT_STATUS_DEFN void *
-# else
+# if !defined __GNUC__ || __GNUC__ < 2 || defined __cplusplus
+# define __WAIT_STATUS void *
+# define __WAIT_STATUS_DEFN void *
+# else
/* This works in GCC 2.6.1 and later. */
typedef union
{
union wait *__uptr;
int *__iptr;
} __WAIT_STATUS __attribute__ ((__transparent_union__));
-# define __WAIT_STATUS_DEFN int *
-# endif
+# define __WAIT_STATUS_DEFN int *
+# endif
-#else /* Don't use BSD. */
+# else /* Don't use BSD. */
-# define __WAIT_INT(status) (status)
-# define __WAIT_STATUS int *
-# define __WAIT_STATUS_DEFN int *
+# define __WAIT_INT(status) (status)
+# define __WAIT_STATUS int *
+# define __WAIT_STATUS_DEFN int *
-#endif /* Use BSD. */
+# endif /* Use BSD. */
/* This will define all the `__W*' macros. */
-#include <bits/waitstatus.h>
+# include <bits/waitstatus.h>
-/* These macros could also be defined int <stdlib.h>. */
-#ifndef WEXITSTATUS
# define WEXITSTATUS(status) __WEXITSTATUS(__WAIT_INT(status))
# define WTERMSIG(status) __WTERMSIG(__WAIT_INT(status))
# define WSTOPSIG(status) __WSTOPSIG(__WAIT_INT(status))
# define WIFEXITED(status) __WIFEXITED(__WAIT_INT(status))
# define WIFSIGNALED(status) __WIFSIGNALED(__WAIT_INT(status))
# define WIFSTOPPED(status) __WIFSTOPPED(__WAIT_INT(status))
-#endif
+#endif /* <stdlib.h> not included. */
#ifdef __USE_BSD
# define WCOREFLAG __WCOREFLAG