[gdal-dev] compiling libLAS which has a GDAL dependency

[Even Rouault]

On samedi 11 mars 2017 16:01:29 CET Stephane Poirier wrote:
> Hi All,
> 
> I successfully compiled a 32 bit build of libLAS under Windows 7 - 32
> bit using Visual Studio 2013.
> 
> Now, I am trying to compile a 64 bit build of libLAS under Windows 7 -
> 64bit using Visual Studio 2013,
> 
> every project compile fine except liblas project which gives me an
> unresolved external, here's the error I get:
> 
> gt_wkt_srs.obj : error LNK2019: unresolved external symbol "public:
> __cdecl CPLMutexHolder::CPLMutexHolder(void * *,double,char const
> *,int,int)" (??0CPLMutexHolder@@QEAA at PEAPEAXNPEBDHH@Z) referenced in
> function GTIFGetOGISDefn
> C:\oifii-org\httpdocs\ns-org\nsd\bs\libLAS-1-8-1_vs2013-x64(spi)\libLAS-1.8.
> 1\bin\Release\liblas.dll
> : fatal error LNK1120: 1 unresolved externals
> 
> I suspect this is related with the gdal_i.lib
> 
> Do you have any clue as to which extra .lib I should include or which
> gdal_i.lib I should switch to?

That rings a bell to me. I'm wondering if it might not be an issue of having a non-DEBUG build 
of GDAL, but including it in libLAS with DEBUG defined. The signature of l 
CPLMutexHolder::CPLMutexHolder() depends on whether DEBUG is defined or not.

Even

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