[gdal-dev] Compile GDAL for x86 on an x64 machine

Martin Chapman chapmanm at pixia.com
Sun Nov 27 13:57:57 EST 2011

Thanks Joaquim.  You are correct, I am using that bat file to configure
the VC environment.  I did a search and found the 32.bat file so I will
try and use that.  I'm glad to know someone else can do it which means I
am doing something wrong which is what I figured.  Thanks for your


Best regards,



From: Joaquim Luis [mailto:jluis at ualg.pt] 
Sent: Saturday, November 26, 2011 5:29 PM
To: Martin Chapman
Cc: gdal-dev at lists.osgeo.org
Subject: Re: [gdal-dev] Compile GDAL for x86 on an x64 machine


On 27-11-2011 00:07, Martin Chapman wrote: 



I am using a Windows 7 x64 machine with VS 2010 with both x86 and x64
compile tools.  When I try to build gdal for x64 using the make file from
the Win64 command prompt and WIN64 = YES in the nmake.opt file everything
compiles fine.  (using gdal 181 by the way).  If I try to compile it for
x86 using the Win86 command prompt and comment out WIN64 in nmake.opt file
I always get a linker error where the compiler complains that the target
machine doesn't match.  I haven't tried this on my Linux box but now I'm
wondering if I am going to have the same issue there as well.


My question is:  Why can't I compile gdal for x86 on my x64 box?  Am I
missing something stupid?  Do you think it's my environment?  Is it
supposed to work?  Has anyone else tried to do this?  I think I've done
this before with other versions but maybe I am mistaken.

I do build 32 & 64 on my machine that is also Win7 64 and use VC10. You
probably did the same mistake I often do. Using the VS vcvarsall.bat for
32 and trying to build the GDAL64 or vice versa.

On another note.  It would be awesome to have gdal use cmake.  Just a

There are people currently putting that thought to practice.


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