[gdal-dev] ESRI Shapefile API missing

[Even Rouault]

Derek,

This is intended. GDAL build shouldn't leak/expose internal 
implementation details such as its embedded shapelib copy, which doesn't 
belong to the GDAL API. Either you use the OGR Shapefile driver through 
OGR API, or you link against external shapelib if you want to use 
shapelib directly

Note that https://github.com/OSGeo/gdal/pull/7973 is pending to fix the 
isolation of the embedded shapelib copy

Even

Le 21/06/2023 à 03:01, Derek Newhall a écrit :
> Hi all,
>
> We've just migrated from GDAL 3.5.1 to 3.7.0 which we build with 
> (almost) all external dependencies as static libraries. However, we've 
> noticed that when we try to compile our app against the resulting 
> library the ESRI Shapefile API isn't available.
>
> Severity Code Description
> Error LNK2001 unresolved external symbol DBFClose
> Error LNK2001 unresolved external symbol SHPOpen
> <snip>
> Error LNK2001 unresolved external symbol SHPCreateObject
> Error LNK2001 unresolved external symbol SHPClose
>
> Looking at the .libs' symbols:
>
> DUMPBIN /linkermember D:\gdal-3.5.1\build\gdal_i.lib | sls DBF
>
>    1ED958 DBFOpen
>    1ED958 __imp_DBFOpen
>    1ED9BC DBFOpenLL
>    1ED9BC __imp_DBFOpenLL
>    1ED3D0 DBFCreate
>    1ED3D0 __imp_DBFCreate
>    1ED436 DBFCreateEx
>    1ED436 __imp_DBFCreateEx
> <snip 50+ lines>
>      1257 __imp_DBFWriteNULLAttribute
>      1256 __imp_DBFWriteStringAttribute
>      125B __imp_DBFWriteTuple
>
> DUMPBIN /linkermember D:\gdal-3.7.0\build\gdal.lib | sls DBF
>
>       DBF OSRGetAxesCount
>       DBF __imp_OSRGetAxesCount
>
> We build the DLL and apps with the following command in a .bat script 
> (all library paths are valid and it compiles):
>
> cmake -G "Visual Studio 16 2019" -DBUILD_APPS=ON -DBUILD_SHARED_LIBS=ON ^
> -DCMAKE_BUILD_TYPE=RelWithDebInfo 
> -DCMAKE_PREFIX_PATH=D:\gdal-3.7.0-build ^
> -DCMAKE_CXX_FLAGS="-DCURL_STATICLIB -DXML_STATIC" 
> -DGDAL_USE_EXTERNAL_LIBS=OFF ^
> -DOGR_BUILD_OPTIONAL_DRIVERS=ON ^
> -DPROJ_INCLUDE_DIR="%~dp0proj-6.3.1\src" ^
> -DPROJ_LIBRARY_RELEASE="%~dp0proj-6.3.1\build_VS2017_x64\lib\RelWithDebInfo\proj.lib" 
> ^
> -DGDAL_USE_CURL=ON -DCURL_INCLUDE_DIR="%~dp0libcurl\include" 
> -DCURL_LIBRARY_RELEASE="%~dp0libcurl\lib\libcurl.lib" ^
> -DGDAL_USE_ECW=ON -DECW_INCLUDE_DIR="%~dp0ERDAS ECW JPEG 2000 SDK 
> 5.5.0\Desktop Read-Only\include" -DECW_LIBRARY="%~dp0ERDAS ECW JPEG 
> 2000 SDK 5.5.0\Desktop Read-Only\lib\vc141\x64\NCSEcw.lib" ^
> -DGDAL_USE_ODBC=ON ^
> -DGDAL_USE_OPENSSL=ON -DOPENSSL_ROOT_DIR="%~dp0openssl-1.1.0f-vs2017" 
> -DOPENSSL_USE_STATIC_LIBS=TRUE -DOPENSSL_MSVC_STATIC_RT=TRUE ^
> -DGDAL_ENABLE_DRIVER_PDF_PLUGIN=ON ^
> -DGDAL_USE_PDFIUM=ON 
> -DPDFIUM_INCLUDE_DIR="%~dp0ExtractPDFium\install\include\pdfium" 
>  -DPDFIUM_LIBRARY="%~dp0ExtractPDFium\install\lib\pdfium.lib" ^
> -DGDAL_USE_SQLITE3=ON 
> -DSQLite3_INCLUDE_DIR="%~dp0sqlite-amalgamation-3370200" 
>  -DSQLite3_LIBRARY="%~dp0sqlite-amalgamation-3370200\sqlite3.lib" ^
> -DGDAL_USE_XERCESC=ON -DXercesC_INCLUDE_DIR="%~dp0xerces-c-3.2.4\src" 
> -DXercesC_LIBRARY="%~dp0xerces-c-3.2.4\build\src\Release\xerces-c_3.lib" ^
> -DGDAL_USE_EXPAT=ON -DEXPAT_INCLUDE_DIR="%~dp0Expat\lib" 
> -DEXPAT_LIBRARY="%~dp0Expat\RelWithDebInfo\libexpat.lib" ^
> ..
>
> The build documentation at 
> https://gdal.org/development/building_from_source.html says the ESRI 
> Shapefile API cannot be disabled, so I'm wondering what's going on.  
> Is this a bug, or did we just misconfigure something? This is our 
> first time semi-successfully building with the new CMake system.
>
> Derek Newhall
>
>
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