On Mar 10, 2010, at 10:46 AM, Bellinski, Dan wrote:

> Hey Mateusz,
>  
> I am using your CMake build with the latest libLAS code and running into a 
> build error. I am linking libLAS with gdal 1.7.1 trunk and GeoTIFF 1.2.5 
> (linked with libTIFF 3.9.2). I have successfully built all the components 
> (other than libLAS) and used the CMake files to create Visual Studio 2009 
> project files. All went well in the CMake generation with no error or 
> warning. When I go to build from the generated VS project files, Las2ogr and 
> las_c.dll are failing to build. The problematic output is listed below.
>  
> I am unsure where to go with troubleshooting.. do you have any idea what the 
> problem may be? I made sure my libraries were correct in CMake but maybe I am 
> missing something? I have the following library/include variables set up and 
> building in release mode:
>  
> GDAL_INCLUDE_DIR: 
> C:/gdal-1.7.1/port;C:/gdal-1.7.1/frmts/gtiff/libgeotiff;C:/gdal-1.7.1/frmts/gtiff/libtiff;C:/gdal-1.7.1/ogr;C:/gdal-1.7.1/gcore;C:/usr/include
> GDAL_LIBRARY: C:/gdal-1.7.1/gdal_i.lib
> GEOTIFF_INCLUDE_DIR: C:/usr/include
> GEOTIFF_LIBRARY: C:/usr/lib/geotiff_i.lib
>  
> Any assistance you could lend would be very appreciated. Thanks a lot for 
> your help!
> 
> 4>Linking...
> 4>   Creating library C:\liblas-Built\bin\Release\Release\las2ogr.lib and 
> object C:\liblas-Built\bin\Release\Release\las2ogr.exp
> 4>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFGetField referenced in function _GTIFWktFromMemBuf
> 4>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFWriteDirectory referenced in function _GTIFMemBufFromWkt
> 4>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFWriteCheck referenced in function _GTIFMemBufFromWkt
> 4>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFIsTiled referenced in function _GTIFMemBufFromWkt
> 4>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFWriteEncodedStrip referenced in function _GTIFMemBufFromWkt
> 4>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFSetField referenced in function _GTIFMemBufFromWkt
> 4>las.lib(tifvsi.obj) : error LNK2019: unresolved external symbol _TIFFError 
> referenced in function "struct tiff * __cdecl VSI_TIFFOpen(char const *,char 
> const *)" (?VSI_TIFFOpen@@YAPAUtiff@@p...@z)
> 4>C:\liblas-Built\bin\Release\Release\las2ogr.exe : fatal error LNK1120: 7 
> unresolved externals
> 4>Build log was saved at 
> "file://c:\liblas-Built\apps\las2ogr.dir\Release\BuildLog.htm"
> 4>las2ogr - 8 error(s), 0 warning(s)
> 3>Linking...
> 3>   Creating library C:\liblas-Built\bin\Release\Release\las_c.lib and 
> object C:\liblas-Built\bin\Release\Release\las_c.exp
> 3>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> __imp__stricmp referenced in function "void __cdecl WKTMassageDatum(char * 
> *)" (?WKTMassageDatum@@yaxpa...@z)
> 3>las.lib(gt_citation.obj) : error LNK2001: unresolved external symbol 
> __imp__stricmp
> 3>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> __imp__strnicmp referenced in function _GTIFGetOGISDefn
> 3>las.lib(gt_citation.obj) : error LNK2001: unresolved external symbol 
> __imp__strnicmp
> 3>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFGetField referenced in function _GTIFWktFromMemBuf
> 3>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFWriteDirectory referenced in function _GTIFMemBufFromWkt
> 3>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFWriteCheck referenced in function _GTIFMemBufFromWkt
> 3>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFIsTiled referenced in function _GTIFMemBufFromWkt
> 3>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFWriteEncodedStrip referenced in function _GTIFMemBufFromWkt
> 3>las.lib(gt_wkt_srs.obj) : error LNK2019: unresolved external symbol 
> _TIFFSetField referenced in function _GTIFMemBufFromWkt
> 3>las.lib(tifvsi.obj) : error LNK2019: unresolved external symbol _TIFFError 
> referenced in function "struct tiff * __cdecl VSI_TIFFOpen(char const *,char 
> const *)" (?VSI_TIFFOpen@@YAPAUtiff@@p...@z)
> 3>C:\liblas-Built\bin\Release\Release\las_c.dll : fatal error LNK1120: 9 
> unresolved externals
> 3>Build log was saved at 
> "file://c:\liblas-Built\src\las_c.dir\Release\BuildLog.htm"
> 3>las_c - 12 error(s), 7 warning(s)

Dan,

I believe this is a liblas cmake configuration issue where libtiff must be 
included as a library to link if GDAL is also linked.  GDAL unfortunately has 
the ability to internally or externally link libtiff, but there is no way to 
tell which it did as an outside user.  In your case (MapServer buildkit, 
right?), I think the linkage is external, so we need to have -ltiff included in 
the libs as well.  Hopefully, Mateusz can give us the bits of cmake script that 
would do that.  

Howard

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