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Re: svn commit: r1209610 - /subversion/trunk/subversion/libsvn_subr/debug.c

From: Daniel Shahaf <danielsh_at_elego.de>
Date: Sat, 7 Jan 2012 01:07:01 +0200

Johan Corveleyn wrote on Fri, Jan 06, 2012 at 23:50:02 +0100:
> On Fri, Jan 6, 2012 at 2:45 AM, Daniel Shahaf <d.s_at_daniel.shahaf.name> wrote:
> > Johan Corveleyn wrote on Fri, Jan 06, 2012 at 02:12:15 +0100:
> >> On Fri, Dec 2, 2011 at 7:04 PM,  <hwright_at_apache.org> wrote:
> >> > Author: hwright
> >> > Date: Fri Dec  2 18:04:14 2011
> >> > New Revision: 1209610
> >> >
> >> > URL: http://svn.apache.org/viewvc?rev=1209610&view=rev
> >> > Log:
> >> > Fix builds where SVN_DEBUG is not defined.
> >> >
> >> > * subversion/libsvn_subr/debug.c:
> >> >  Don't build any of this file if SVN_DEBUG isn't defined.  Callers don't have
> >> >  access to it in that case, anyway.
> >>
> >> For some reason, after this commit my *Release* build on Windows (VCE
> >> 2008) fails with:
> >>
> >> libsvn_subr.def : error LNK2001: unresolved external symbol svn_dbg__preamble
> >> libsvn_subr.def : error LNK2001: unresolved external symbol svn_dbg__print_props
> >> libsvn_subr.def : error LNK2001: unresolved external symbol svn_dbg__printf
> >> ..\..\..\Release\subversion\libsvn_subr\libsvn_subr-1.lib : fatal
> >> error LNK1120: 3 unresolved externals
> >>
> >> I've been trying to understand why, but I don't. Maybe something to do
> >> with preprocessors and linkers ... but my C compilation knowledge is
> >> lacking here :-).
> >>
> >> Is any of the other Windows devs seeing this?
> >>
> >> A Debug build still works, so if SVN_DEBUG is defined everything's ok.
> >> I guess that's also the reason why the buildbots don't see this
> >> problem (I guess they perform Debug-builds).
> >>
> > Does adding those three functions to the exceptions list in
> > build/generator/extractor.py fix the release build (and break the
> > debug build)?
>
> Yes.
>
> Release build works.
>
> Debug build fails with:
>
> libsvn_ra_local-1.lib(ra_plugin.obj) : error LNK2019: unresolved
> external symbol _svn_dbg__printf referenced in function
> _ignore_warnings
> libsvn_ra_local-1.lib(ra_plugin.obj) : error LNK2019: unresolved
> external symbol _svn_dbg__preamble referenced in function
> _ignore_warnings
> ..\..\..\Debug\subversion\libsvn_ra\libsvn_ra-1.dll : fatal error
> LNK1120: 2 unresolved externals
>
>
> Any ideas on how to fix this?
>

Make extractor.py skip svn_debug.h for debug builds?

> Has anyone been able to make a Release build on Windows since this commit?
>

And if not: should we convert one of the bots to Release builds?

> --
> Johan
Received on 2012-01-07 00:07:50 CET

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