[gdal-dev] Compiling with ECW/JP2ECW support enabled

[Even Rouault]

Le mercredi 17 février 2016 18:13:02, Jonathan Williams a écrit :
> That's exactly correct, for the plugin attempt. I tried it just to see
> if it would get anywhere, as I couldn't find a plugin build script that
> supported GDAL >2.0.
> 
> As for trying to build the ecw/jp2ecw support into GDAL 2.0.2 itself,
> I've now tried the old libecwj2 3.3 code in lieu of the SDK 5.2.1
> libraries; as usual, it configures and compiles without complaint, but
> the ecw support is simply absent in the final product.

In case you do multiple ./configure attempts, do you do "make clean" after 
running ./configure ? ( "touch frmts/gdalallregister.cpp" should be sufficient 
for just new drivers )

> 
> I'd like to use some of the GDAL >2.0 features, but if I'm not able to
> get ecw and OpenCL working, I may drop back to the <2.0 series to see if
> that helps.
> 
> Best,
> Jonathan
> 
> On 2/17/2016 11:47 AM, Even Rouault wrote:
> > Le mercredi 17 février 2016 16:38:30, Jonathan Williams a écrit :
> >> I have tried this; I've added the Ubuntu-GIS repository, but none of the
> >> builds are for 64 bit 14.04 LTS, from what I've seen.
> >> 
> >> I've also tried to force the issue with the instructions here:
> >> http://gis.stackexchange.com/a/102088
> >> 
> >> However, the build fails, perhaps because I'm using version 5.2.1 of
> >> ERDAS' SDK with libNCSEcw.so.5.2.1, or perhaps because I'm using Gdal
> >> 2.0.2? the compile messages indicate a couple of errors.
> >> 
> >> 
> >> /usr/local/include/gdal_priv.h:226:19: error: ‘char**
> >> GDALOpenInfo::papszSiblingFiles’ is private
> >> 
> >>      char        **papszSiblingFiles;
> >>      
> >>                    ^
> >> 
> >> ecwdataset.cpp:2526:48: error: within this context
> >> 
> >>                                     poOpenInfo->papszSiblingFiles, NULL
> >>                                     );
> >>                                     
> >>                                                 ^
> >> 
> >> make: *** [ecwdataset.o] Error 1
> >> 
> >> ...as well as...
> >> 
> >> ecwdataset.cpp:440:91: error: no matching function for call to
> >> ‘ECWRasterBand::SetDefaultHistogram(double&, double&, int&, int*&)’
> > 
> > My bet is that you are building the ECW driver code from GDAL 1.X against
> > GDAL 2.X headers.
> > 
> >> Note that I did *not* attempt to install QGIS or libgdal-dev, as I was
> >> concerned some of the other dependencies might regress work that I'd
> >> done with compiling Jasper, etc.
> >> 
> >> Best,
> >> Jonathan
> >> 
> >> On 2/17/2016 12:26 AM, Tomaka, Jacek wrote:
> >>> HI Jonathan,
> >>> Have you tried compiling in  ECW/JP2 support as a plugin?
> >>> Regards.
> >>> Jacek Tomaka
> >>> 
> >>> -----Original Message-----
> >>> From: gdal-dev [mailto:gdal-dev-bounces at lists.osgeo.org] On Behalf Of
> >>> Jonathan Williams Sent: Wednesday, 17 February 2016 4:51 AM
> >>> To: gdal-dev at lists.osgeo.org
> >>> Subject: [gdal-dev] Compiling with ECW/JP2ECW support enabled
> >>> 
> >>> Hello,
> >>> In addition to my previous question regarding OpenCL support
> >>> bafflement, I've run into difficulty compiling GDAL 2.02 with ECW
> >>> support.
> >>> 
> >>> I've compiled with "--with-ecw=/usr/local/hexagon", as the 5.2 SDK is
> >>> located there, and symlinked the
> >>> /usr/local/hexagon/lib/(x64|x86)/release/libNCSEcw.so library to
> >>> /usr/local/lib/libNCSEcw.so .
> >>> 
> >>> Configuration completes with no errors, as does compilation. The
> >>> ./configure output indicates that support is selected, and config.log
> >>> says all libraries were found.
> >>> 
> >>> However, the completed utilities do not list ecw as a readable format,
> >>> and indeed, they cannot read ecw files (much less jpeg2000 ones).
> >>> 
> >>> I understand there have been libgdal-ecw scripts that some have run to
> >>> enable support; however, I haven't found one for this situation (Ubuntu
> >>> desktop 14.04.3 LTS 64 bit, with gdal 2.02).
> >>> 
> >>> Is it the case that these scripts also need to be run to enable ecw
> >>> support? or am I foolishly missing something?
> >>> 
> >>> I see in the config.log that -ECW_FLAGS are set to
> >>> '-DHAVE_ECW_BUILDNUMBER_H -DLINUX -DX86 -DPOSIX -DHAVE_COMPRESS
> >>> -DECW_COMPRESS_RW_SDK_VERSION', and thought perhaps a 32 bit library
> >>> had been selected; however, manually modifying the flag "DX86" to
> >>> "DX64" simply produced an error.
> >>> 
> >>> Any insight would be appreciated.
> >>> 
> >>> Best regards,
> >>> Jonathan Williams
> >>> 
> >>> _______________________________________________
> >>> gdal-dev mailing list
> >>> gdal-dev at lists.osgeo.org
> >>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
> >> 
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