[gdal-dev] gdal on OS X

[Ken Mankoff]

Hi List,

I'm trying to get gdal working on OS X 10.6. I'm have tried a 
variety of ways with varying success.

I installed GDAL 1.7 Complete from 
http://www.kyngchaos.com/software:frameworks

If I go to /Library/Frameworks/GDAL.framework/unix/bin I can seem to 
run the unix binaries. For example, "./gdal_info" provides usage 
instructions. I cannot run the Python programs. If I launch my 
Python and type "from osgeo import gdal" it doesn't work because I 
run the EPD Python not the OS X default. That command *does* work, 
and the Python binaries do run (or at least print usage info) if I 
comment out the EPD section in my .bash_profile and run using the 
system Python.

Any ideas how to run GDAL with EPD?

My second attempt was to build gdal from source.

export MACOSX_DEPLOYMENT_TARGET=10.5
export ARCHFLAGS="-arch i386"

./configure --prefix=/Users/mankoff/local/gdal-1.7.2 
--with-macosx-framework --with-python CFLAGS=-m32 CPPFLAGS=-m32 
CXXFLAGS=-m32

make

The make command crashes with


/bin/sh /Users/mankoff/local/src/gdal-1.7.2/libtool --mode=link	g++ 
gdalinfo.lo  /Users/mankoff/local/src/gdal-1.7.2/libgdal.la -o 
gdalinfo
libtool: link: g++ .libs/gdalinfo.o -o .libs/gdalinfo 
/Users/mankoff/local/src/gdal-1.7.2/.libs/libgdal.dylib -L/usr/lib 
-lsqlite3 -lexpat -lz -ldl -lcurl
ld: warning: in .libs/gdalinfo.o, file was built for i386 which is 
not the architecture being linked (x86_64)
ld: warning: in 
/Users/mankoff/local/src/gdal-1.7.2/.libs/libgdal.dylib, file was 
built for i386 which is not the architecture being linked (x86_64)
Undefined symbols:
   "_main", referenced from:
       start in crt1.10.5.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[1]: *** [gdalinfo] Error 1
make: *** [apps-target] Error 2


Clearly a 32/64 bit issue. I think I'm missing some simple link flag 
to tell it what architecture I'm aiming for. Does anyone know what 
it is?


I'd love to type "fink install gdal" but for some reason it depends 
on and also installs qt, python, etc. There seem to be an awful lot 
of dependencies that the raw source compilation doesn't use.

Thanks for any help you can provide,

    -k.