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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: GNAT & Interfaces.Bit_Types
Date: Sun, 14 Aug 2016 18:48:07 +0100
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Date: 2016-08-14T18:48:07+01:00
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The arm-eabi runtimes (did you know they are on Github now? [1]) include
a unit as in the Subject with the file name i-bit_types.ads, which
doesn't match GNAT's long-standing krunching of file names to 8.3 format
(which would yield i-bittyp.ads).

Gprbuild GPL 2016 doesn't recognise this, believes the source is
missing, and recompiles everything that depends on it every time.

Looking at AdaCore/gprbuild on Github, this was assigned [P321-019] and
was fixed on 27 May.

So if it's a problem for you you can just (!) rebuild gprbuild from
Github.

[1] https://github.com/AdaCore/embedded-runtimes