/* Like <fcntl.h>, but with non-working flags defined to 0.
- Copyright (C) 2006-2009 Free Software Foundation, Inc.
+ Copyright (C) 2006-2010 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
/* Special invocation convention. */
#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
+#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
+# include <sys/stat.h>
+#endif
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
#else
#ifndef _GL_FCNTL_H
#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
+#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
+# include <sys/stat.h>
+#endif
/* The include_next requires a split double-inclusion guard. */
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
#ifndef _GL_FCNTL_H
#define _GL_FCNTL_H
+#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
+# include <unistd.h>
+#endif
+
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
-/* The definition of GL_LINK_WARNING is copied here. */
+/* The definition of _GL_ARG_NONNULL is copied here. */
+
+/* The definition of _GL_WARN_ON_USE is copied here. */
/* Declare overridden functions. */
-#ifdef __cplusplus
-extern "C" {
+#if @GNULIB_FCNTL@
+# if @REPLACE_FCNTL@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef fcntl
+# define fcntl rpl_fcntl
+# endif
+_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
+_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
+# else
+# if !@HAVE_FCNTL@
+_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
+# endif
+_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
+# endif
+_GL_CXXALIASWARN (fcntl);
+#elif defined GNULIB_POSIXCHECK
+# undef fcntl
+# if HAVE_RAW_DECL_FCNTL
+_GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
+ "use gnulib module fcntl for portability");
+# endif
#endif
#if @GNULIB_OPEN@
# if @REPLACE_OPEN@
-# undef open
-# define open rpl_open
-extern int open (const char *filename, int flags, ...);
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef open
+# define open rpl_open
+# endif
+_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
+ _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
+# else
+_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
# endif
+_GL_CXXALIASWARN (open);
+#elif defined GNULIB_POSIXCHECK
+# undef open
+/* Assume open is always declared. */
+_GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
+ "use gnulib module open for portability");
#endif
#if @GNULIB_OPENAT@
-# if !@HAVE_OPENAT@
-# undef openat
-# define openat rpl_openat
-int openat (int fd, char const *file, int flags, /* mode_t mode */ ...);
+# if @REPLACE_OPENAT@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef openat
+# define openat rpl_openat
+# endif
+_GL_FUNCDECL_RPL (openat, int,
+ (int fd, char const *file, int flags, /* mode_t mode */ ...)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (openat, int,
+ (int fd, char const *file, int flags, /* mode_t mode */ ...));
+# else
+# if !@HAVE_OPENAT@
+_GL_FUNCDECL_SYS (openat, int,
+ (int fd, char const *file, int flags, /* mode_t mode */ ...)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (openat, int,
+ (int fd, char const *file, int flags, /* mode_t mode */ ...));
# endif
+_GL_CXXALIASWARN (openat);
#elif defined GNULIB_POSIXCHECK
# undef openat
-# define openat(f,u,g) \
- (GL_LINK_WARNING ("openat is not portable - " \
- "use gnulib module openat for portability"), \
- openat)
+# if HAVE_RAW_DECL_OPENAT
+_GL_WARN_ON_USE (openat, "openat is not portable - "
+ "use gnulib module openat for portability");
+# endif
#endif
-#ifdef __cplusplus
-}
-#endif
-/* Fix up the FD_* macros. */
+/* Fix up the FD_* macros, only known to be missing on mingw. */
#ifndef FD_CLOEXEC
# define FD_CLOEXEC 1
#endif
+/* Fix up the supported F_* macros. Intentionally leave other F_*
+ macros undefined. Only known to be missing on mingw. */
+
+#ifndef F_DUPFD_CLOEXEC
+# define F_DUPFD_CLOEXEC 0x40000000
+/* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */
+# define GNULIB_defined_F_DUPFD_CLOEXEC 1
+#else
+# define GNULIB_defined_F_DUPFD_CLOEXEC 0
+#endif
+
+#ifndef F_DUPFD
+# define F_DUPFD 1
+#endif
+
+#ifndef F_GETFD
+# define F_GETFD 2
+#endif
+
/* Fix up the O_* macros. */
#if !defined O_DIRECT && defined O_DIRECTIO