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Print warning if _XOPEN_SOURCE and _SVID_SOURCE are not defined.

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This commit is contained in:
Ulrich Drepper 1997-05-25 18:22:14 +00:00
parent c0a119316e
commit 68b192d0dd
1 changed files with 5 additions and 1 deletions
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6
sysvipc/sys/ipc.h
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@ -1,4 +1,4 @@
/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
@ -25,6 +25,10 @@
/* Get system dependent definition of `struct ipc_perm' and more. */
#include <sys/ipc_buf.h>
#if !defined __USE_SVID && !defined __USE_XOPEN && __GNUC__ >= 2
# warning "Files using this header must be compiled with _SVID_SOURCE or _XOPEN_SOURCE"
#endif
__BEGIN_DECLS
/* Generates key for System V style IPC. */