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From: "Greg Kennedy (kennedy DOT greg AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
Date: Fri, 11 Dec 2020 22:35:46 -0600
Message-ID: <CAN1+P_1=YvpR4oSt+SC0+WWB=ZfJRQzszsV0UwLnEhatpm0kpw@mail.gmail.com>
Subject: Re: GCC 10.2.0, collect2.exe error - cannot create temporary file
To: djgpp AT delorie DOT com
Content-Type: text/plain; charset="UTF-8"
Reply-To: djgpp AT delorie DOT com

More than that, unfortunately.  (It's a MAME compile, each cpu or
machine is essentially in its own .o)

I also have a few static libs I'd like compiled in.  Since this
apparently requires the lto-plugin for visibility, it looks like I
should just abandon this attempt to use lto.  Oh well.

On Mon, Nov 30, 2020 at 10:13 AM Eli Zaretskii (eliz AT gnu DOT org) [via
djgpp AT delorie DOT com] <djgpp AT delorie DOT com> wrote:
>
> > From: "Greg Kennedy (kennedy DOT greg AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
> > Date: Mon, 30 Nov 2020 00:25:33 -0600
> >
> > However, this did give me a way to try building with more or less .o
> > files on the command-line.  As I did this I found that the pex-common
> > call was returning an FD that *increased* for every .o I added.  For
> > example, here's where I put three .o files and the rest in a .a:
> >
> > collect2.c: make_temp_file(.ctc)
> > Called make_temp_file(.ctc), redirecting
> > Called make_temp_file_with_prefix(cc, .ctc):
> > 'c:/djgpp/tmp/ccXXXXXX.ctc'mkstemps(c:/djgpp/tmp/ccXXXXXX.ctc, 4):
> > trying open(c:/djgpp/tmp/cchFW50P.ctc, ...)
> > Got new file descriptor 5
> > -> 'c:/djgpp/tmp/cchFW50P.ctc'
> > collect2.c: make_temp_file(.cto)
> > Called make_temp_file(.cto), redirecting
> > Called make_temp_file_with_prefix(cc, .cto):
> > 'c:/djgpp/tmp/ccXXXXXX.cto'mkstemps(c:/djgpp/tmp/ccXXXXXX.cto, 4):
> > trying open(c:/djgpp/tmp/ccoaJ1Rv.cto, ...)
> > Got new file descriptor 5
> > -> 'c:/djgpp/tmp/ccoaJ1Rv.cto'
> > pex-common.c: make_temp_file(NULL)
> > Called make_temp_file((null)), redirecting
> > Called make_temp_file_with_prefix(cc, ):
> > 'c:/djgpp/tmp/ccXXXXXX'mkstemps(c:/djgpp/tmp/ccXXXXXX, 0): trying
> > open(c:/djgpp/tmp/ccYv0qDi, ...)
> > Got new file descriptor 9
> > -> 'c:/djgpp/tmp/ccYv0qDi'
> >
> > (Meanwhile, just one .o file gave an FD of 7.  All objects in a .a
> > never actually calls this function, I guess because it isn't
> > involved.)
> >
> > My assumption then is that I'm running out of free File Descriptors by
> > passing too many .o files at once.  This seems like a bug, maybe?
>
> How many *.o files do you have in this case?  You can have up to 255
> files open at any given time, see the DJGPP FAQ for details.