Re: warning LNK4291: module may contain '__except' but was not compiled with /guard:ehcont

[chuck c <bubbasnmp () gmail com>]

LNK4291 first time after deleting wsbuild64 and rebuilding with
cmake -G "Visual Studio 16 2019" -A x64 ..\wireshark

           libmaxminddb.lib(maxminddb.c.obj) : warning LNK4291: module may
contain '__except' (Structured Exception Handling)
but was not compiled with /guard:ehcont; generating conservative metadata
[C:\Development\wsbuild64\mmdbresolve.vcxproj]

After a code change, it is
         c:\development\wireshark\epan\wslua\init_wslua.c : fatal error
C1001: Internal compiler error. [C:\Development\wsbuild64\epan\epan.vcxproj]
         LINK : fatal error LNK1000: Internal error during
IMAGE::BuildImage [C:\Development\wsbuild64\epan\epan.vcxproj]



On Fri, Jul 2, 2021 at 11:31 AM Graham Bloice <graham.bloice () trihedral com>
wrote:

> On Fri, 2 Jul 2021 at 17:28, Graham Bloice <graham.bloice () trihedral com>
> wrote:
>
> > On Fri, 2 Jul 2021 at 17:21, Maynard, Christopher via Wireshark-dev <
> > wireshark-dev () wireshark org> wrote:
> >
> > > > From: Wireshark-dev <wireshark-dev-bounces () wireshark org> On Behalf
> > > Of Graham Bloice
> > > > Sent: Friday, July 2, 2021 11:53 AM
> > > > To: Developer support list for Wireshark <wireshark-dev () wireshark org>
> > > > Subject: Re: [Wireshark-dev] warning LNK4291: module may contain
> > > '__except' but was not compiled with /guard:ehcont
> > > > I'd be interested to know if you see link errors on subsequent
> > > rebuilds as noted by Martin M and myself in emails discussions today.
> > > > --
> > > > Graham Bloice
> > >
> > > Yes, I do:
> > >
> > > Build FAILED.
> > >
> > >        "D:\wireshark\builds\win64\master\Wireshark.sln" (default target)
> > > (1) ->
> > >        "D:\wireshark\builds\win64\master\wireshark.vcxproj.metaproj"
> > > (default target) (2) ->
> > >        "D:\wireshark\builds\win64\master\wireshark.vcxproj" (default
> > > target) (150) ->
> > >        (Link target) ->
> > >          d:\wireshark\src\master\speexdsp\resample.c : fatal error
> > > C1001: Internal compiler error.
> > > [D:\wireshark\builds\win64\master\wireshark.vcxproj]
> > >          LINK : fatal error LNK1000: Internal error during
> > > IMAGE::BuildImage [D:\wireshark\builds\win64\master\wireshark.vcxproj]
> > >
> > >     0 Warning(s)
> > >     2 Error(s)
> > >
> > > - Chris
> > My suspicion is that the added compiler and linker flags taint the .obj
> > files in some way that subsequently breaks the compilation.  It may be down
> > to a conflict between the new security flags and link time code generation
> > (so the .obj files are in some "intermediate form").  I didn't try making
> > another code modification and rebuilding after I had gotten my build with
> > /t:Rebuild to work, so I've kicked off one now (unfortunately the update to
> > master has pulled in some CMake changes as well so the regeneration is
> > running which might invalidate my attempt to replicate.
> Failed in the same way.  Might have to try to make a minimal repo and
> report to MS.
>
> --
> Graham Bloice
> ___________________________________________________________________________
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