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Rely on gnulib's unistd.h replacement.

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With gnulib's unistd module, we can assume unistd.h is always present, and that
STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO are always defined.

Don't remove unistd.h from GDB's configure.ac, as later tests in the
file use HAVE_UNISTD_H checks.

gdb/
2013-07-01  Pedro Alves  <palves@redhat.com>

	* defs.h: Don't check HAVE_UNISTD_H before including <unistd.h>.
	(STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO): Delete.
	* tracepoint.c: Don't check HAVE_UNISTD_H before including
	<unistd.h>.

gdb/gdbserver/
2013-07-01  Pedro Alves  <palves@redhat.com>

	* event-loop.c: Don't check HAVE_UNISTD_H before including
	<unistd.h>.
	* gdbreplay.c: Likewise.
	* remote-utils.c: Likewise.
	* server.c: Likewise.
	* configure.ac: Don't check for unistd.h.
	* configure: Regenerate.
This commit is contained in:
Pedro Alves
2013-07-01 11:19:27 +00:00
parent 8839a007ad
commit bc7dea8de9
10 changed files with 19 additions and 26 deletions
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14
gdb/defs.h
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@@ -52,10 +52,7 @@
#include <stddef.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <fcntl.h>
/* First include ansidecl.h so we can use the various macro definitions
@@ -766,17 +763,6 @@ extern int use_windows;
#define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
#endif
/* Define well known filenos if the system does not define them. */
#ifndef STDIN_FILENO
#define STDIN_FILENO 0
#endif
#ifndef STDOUT_FILENO
#define STDOUT_FILENO 1
#endif
#ifndef STDERR_FILENO
#define STDERR_FILENO 2
#endif
/* If this definition isn't overridden by the header files, assume
that isatty and fileno exist on this system. */
#ifndef ISATTY