RE: [Openexr-user] Windows Half.lib link errors

[Nick Porcino]

CreateDLL turns your library into a DLL. Definitely not what you want, I
think!

-----Original Message-----
From: address@hidden
[mailto:address@hidden On
Behalf Of Wesley Smith
Sent: Wednesday, January 16, 2008 2:19 PM
To: James Burgess
Cc: address@hidden
Subject: Re: [Openexr-user] Windows Half.lib link errors

Hi again,
I finally got back to working on this.  I'm 100% positive I don't have
OPENEXR_DLL enabled.  The appropriate section of code is indeed grayed
out and a well-placed #error message gets picked up.  One question I
have though is about the build steps in the VC8 project.  There are 3.

1) Build LUTs
2) Compile as usual
3) run a command createDLL

What is this last step doing exactly?  I don't need DLLs as I want to
statically link OpenEXR in my project.  Can I just get rid of it?

thanks,
wes

On Jan 14, 2008 10:34 AM, James Burgess <address@hidden> wrote:
> You sure you don't have OPENEXR_DLL defined? The editor will attempt
> to grey out the code that is ifdef'd out but it is easily confused. I
> suggest adding a #error or similar in half.cpp inside the appropriate
> #ifdef to prove you are getting the right defines. You must not have
> OPENEXR_DLL defined for a static build.
>
> - James
>
>
> On Jan 14, 2008, at 10:26 AM, Wesley Smith wrote:
>
> > Hi James,
> > I definitely see that and those files are indeed being generated.
> > I'll look into the details of what is actually happenning and see if
I
> > can figure out where it's going wrong.  What the linker seems to
> > indicate though is the lack of existence of the symbol and AFAICT, I
> > should be getting syntax errors if the toFloat.cpp and eLut.cpp
didn't
> > exist since they're declared (email coding here) something like:
> >
> > static half::uif * _toFloat = #include "toFloat.cpp"
> >
> > I will admit to not being incredibly familiar with the details of
> > windows building as I mostly use GCC and OSX, so we'll see how this
> > goes.
> >
> > best,
> > wes
> >
> >
> >
> >
> > On Jan 14, 2008 10:18 AM, James Burgess <address@hidden> wrote:
> >> Wes,
> >>         You should see in the Half project a "Pre-Build Event"
called
> >> "Building LUT Files..." I think that toFloat.cpp and eLut.cpp get
> >> compiled via that. (I'm refering to the 1.6 project file for
IlmBase)
> >>
> >> - James
> >>
> >>
> >> On Jan 13, 2008, at 2:12 PM, Wesley Smith wrote:
> >>
> >>> Hi,
> >>> I'm trying to get OpenEXR to build properly on Windows with
VS2008.
> >>> The one stumbling block I have is with the static LUT exports for
> >>> data
> >>> type conversion.
> >>>
> >>> 2>   Creating library ..\Release\Half.lib and object ..\Release
> >>> \Half.exp
> >>> 2>Half.exp : error LNK2001: unresolved external symbol "unsigned
> >>> short
> >>> * _eLut" (?_eLut@@3PAGA)
> >>> 2>Half.exp : error LNK2001: unresolved external symbol "union
> >>> half::uif * _toFloat" (?_toFloat@@address@hidden@@A)
> >>>
> >>> I can't seem to figure out how to fix this issue.  Any ideas?
These
> >>> are my preprocessor defines:
> >>>
> >>> WIN32
> >>> NDEBUG
> >>> _WINDOWS
> >>> HALF_EXPORTS
> >>>
> >>> I've also changed the target from a dynamic dll to a static lib.
> >>>
> >>> thanks,
> >>> wes
> >>>
> >>>
> >>> _______________________________________________
> >>> Openexr-user mailing list
> >>> address@hidden
> >>> http://lists.nongnu.org/mailman/listinfo/openexr-user
> >>
> >>
>
>


_______________________________________________
Openexr-user mailing list
address@hidden
http://lists.nongnu.org/mailman/listinfo/openexr-user