R: [Qgis-developer] ECW support again

marco.pasetti at alice.it marco.pasetti at alice.it
Tue Jun 10 10:26:07 EDT 2008

Hi Paolo,
sit down and listen: it could be a long job to do;
MinGW sometimes has problems linking against MSVC libraries, specially GDAL if built with MinGW: forget it!
You need to build GDAL (with ECW support) using Visual Studio, then you need to build GRASS (using MinGW)and then again GDAL with GRASS support (with VS).
This done, you need to build some things over (with MinGW), and then finally build QGIS with CMake.
See my BuldingGuide for more information:
http://www.webalice.it/marco.pasetti/qgis+grass/BuildFromSource.html <http://www.webalice.it/marco.pasetti/qgis+grass/BuildFromSource.html> 
see also
http://www.webalice.it/marco.pasetti/grass/BuildFromSource.html <http://www.webalice.it/marco.pasetti/grass/BuildFromSource.html> 


Da: qgis-developer-bounces at lists.osgeo.org per conto di Paolo L. Scala
Inviato: mar 10/06/2008 16.15
A: qgis-developer at lists.osgeo.org
Oggetto: [Qgis-developer] ECW support again

Hello everyone,
I posted this on the QGIS forum too, but I didn't get any reply, so I
try here :)

I managed to compile GDAL with ECW support using Microsoft Visual Studio
2005 express, but how can I build QGIS with the new dll?
I reconfigured the build using cmakesetup, specifying the new dll and
includes paths, but the compilation exits with errors about functions
that couldn't be found.
I tried to compile gdal with MinGW, but it seem it doesnt recognize MS
SDK's includes and libraries, even thought I specified them in the
LDFLAGS and CPPFLAGS environment variables.
Can someone give me some hint?
Thanks a lot,
Qgis-developer mailing list
Qgis-developer at lists.osgeo.org

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