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[Ada] Remove remnants of GNAT support for OS/2 and MSDOS

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Geert Bosch <bosch at adacore dot com>
Date: Tue, 22 Jun 2010 18:57:37 +0200
Subject: [Ada] Remove remnants of GNAT support for OS/2 and MSDOS

While real support has long been gone, there were various mentions
and pieces of conditionally compiled code remaining. This clears
them up. No test case necessary, as this removes inactive code.

Tested on x86_64-pc-linux-gnu, committed on trunk

2010-06-22  Geert Bosch  <bosch@adacore.com>

	* sysdep.c, init.c, adaint.c, cstreams.c: Remove conditional code
	depending on __EMX__ or MSDOS being defined.
	* i-cstrea.ads, gnat_rm.texi: Remove mentions of OS/2, DOS and Xenix.
	* a-excpol-abort.adb: Update comment indicating users of the file.
	* xref_lib.adb, sfn_scan.adb: Remove mention of OS/2, replace NT by
	Windows.
	* env.c: Remove empty conditional for MSDOS.
	* s-stchop.adb, g-dirope.ads, s-fileio.adb, osint.ads: Remove mention
	of OS/2 in comment.

Attachment: difs
Description: Text document

Follow-Ups:
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  - From: DJ Delorie

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