sfcom_oledb license ambiguities

[warmerdam]

• sfcom_oledb/ICommandWidthParametersImpl.h: Provided by ESRI without clear copyright/license terms. TO_RESOLVE
• atl_net/ICRRowsetImpl.h,IFRowsetImpl.h,CCRRowsetImpl.h,SFAccessorImpl.h: Modified form of code from ATLDB.H, properly credited in the header. Copyright claim is dubious. TO_RESOLVE
• atl_net/IColumnsRowsetImpl.h: Derived from code for article by Len Holgate, JetByte Limited. It is not clear if the code is properly licensed, though it is attributed. TO_RESOLVE
• Similar issues to above in atl_vc6 directory.

[warmerdam]

I propose to move the gdal/ogr/sfcom_oledb directory out of trunk/gdal into /spike as it isn't widely used, is largely tangential to GDAL/OGR itself and has some hard to resolve license issues. I will take this suggestion to the gdal-dev list.

[warmerdam]

Regarding the modified ATL stuff, here is what Visual Studio 2005 EULA says:

3. ADDITIONAL LICENSING REQUIREMENTS AND/OR USE RIGHTS

- MFCs, ATLs and CRTs.  You may modify the source code form of Microsoft
Foundation Classes (MFCs), Active Template Libraries (ATLs), and C
runtimes (CRTs) to design, develop and test your programs, and copy and
distribute the object code form of your
modified files under a new name.

This appears to be clearly incompatible with redistribution of the modified source.

[warmerdam]

sfcom_oledb and sfc* stuff all migrated to http://trac.osgeo.org/gdal/browser/spike/sfcom_oledb by motion of the PSC.

Makefiles, etc somewhat updated, but the providers themselves don't seem to be buildable for me anymore. This may be a specific compiler version issue.

[Even Rouault]

In r16803, removed the link to sfc_tutorial.html that is now broken.