Re: lib dir numbers

[Joe Buck <jbuck at synopsys dot com>]

> What does the "2.90.27" mean in <prefix>/lib/gcc-lib/*/egcs-2.90.27 for
> v1.0.2 that came out 980316?

(Jeff, feel free to correct this).

It is the 27th revision in a series which was arbitrarily labeled 2.90.

> I notice that the 980315 snapshot uses "2.91.14".  Does that mean the
> 980315 snapshot is later code and should be installed in preference to
> v1.0.2 even though it came out later?

Well, it is later code, but here 'later' means 'not ready for release
yet.'

2.91 is a new series.  It's kind of like the Linux kernel; there is a
stable release sequence (2.90.x) and an unstable snapshot sequence
(2.91.x).  The very first egcs snapshot was 2.90.0.  egcs-1.0 was
2.90.<something>, at which point the development snapshots became
2.91.x, but egcs-1.0.1 and 1.0.2 are still 2.90.x.

Eventually 1.1 (or 1.1.0?) will appear; that will be 2.91.x for some x.
Until then, any given 2.91.x version may be broken in various ways.