Is part of gcc3 missing?

Larry Hall (Cygwin)
Wed Nov 3 19:53:00 GMT 2010

On 11/3/2010 3:25 PM, Andy Koppe wrote:
> On 3 November 2010 14:59, Larry Hall (Cygwin) wrote:
>> On 11/3/2010 10:10 AM, Lee Maschmeyer wrote:
>>> Hmm. Is that really the best approach unless absolutely necessary? "That
>>> doesn't work so do something else" has always struck me as a less than
>>> ideal
>>> approach to debugging. :-) Is it possible that caml could be repaired so
>>> it
>>> doesn't depend on GCC4?
>> I'm not sure "repaired" is the right word for this
> I don't think it is. Gcc-4 is Cygwin 1.7's system compiler, so there's
> nothing wrong with (parts of) the ocaml package depending on it.
> But I guess the ability to switch the default compiler back to gcc-3
> should come with a health warning: it may break stuff. Time to get rid
> of the gcc alternatives setup perhaps, and require users to specify
> gcc-3 explicitly if they still want it?

I don't believe this is an issue with which compiler is used.  The
issue is simply that the OP is trying to build brltty with gcc-3 while
not rebuilding (or using) dependencies (ocaml) built with gcc-3.  I'd
wager that just installing the old Cygwin ocaml packages that were
built with gcc-3 would fix the problem, though like I said in my
reply, I didn't actually test that theory.  Of course, that's not a
general recipe for success, since older packages built on gcc-3 may
not always be available.  So anyone that wants to build with gcc-3
must be prepared to build all dependencies.  Like most software, the
compiler is backward-compatible but isn't forward-compatible.  But
you're right.  In a nutshell, if you don't consider and address these
issues when using gcc-3 to rebuild packages, "it may break stuff". :-)

Larry Hall                    
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746


A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?

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