Cygwin/Python Build Problems

[warmerdam]

Originally from Matt (patawi -*- polarcom.com):

Cool. I assume gdal needs to be compiled with python support then? I'm on
Cygwin most of the time and this hasn't worked to well for me. Bug report
follows. Consider it an FYI. While I would be grateful for  a "just do
this, it works" I fully understand that linux is where you live and
troubleshooting elsewhere is not necessarily a priority. (I do have linux
available to me if I really need it)

>From a clean gdal.1.17 src directory, executing "./configure --without-ogr
&& make" runs okay. "make install" is okay until:
---
make[1]: Entering directory `/usr/local/src/gdal-1.1.7/pymod'
../install-sh -d /usr/lib/python2.2/site-packages
for f in *.py _gdalmodule.so ; do ../install-sh -c $f
/usr/lib/python2.2/site-pa
ckages ; done
install:  _gdalmodule.so does not exist
make[1]: *** [install] Error 1
make[1]: Leaving directory `/usr/local/src/gdal-1.1.7/pymod'
make: *** [install-actions] Error 2
---

I found cygMakefile in the pymod dir and tried:

---
$ make clean
rm -f *.o *.so

$ make -f cygMakefile
gcc -c -I. -I.. -I../port -I../core -I../ogr -I/usr/include/python2.2
-I/usr/inc
lude/python2.2\
        -Wall  -O2 -I/usr/local/include    -I/usr/local/include
-DUSE_DL_IMPORT
 -DHAVE_NUMPY gdal_wrap.c -o gdal_wrap.o
gdal_wrap.c: In function `SWIG_GetPtr':
gdal_wrap.c:340: warning: statement with no effect
gdal_wrap.c:344: warning: suggest parentheses around assignment used as
truth va
lue
gdal_wrap.c: At top level:
gdal_wrap.c:193: warning: `SWIG_addvarlink' defined but not used
c++ -c -I. -I.. -I../port -I../core -I../ogr -I/usr/include/python2.2
-I/usr/inc
lude/python2.2 \
         -Wall  -O2  -I/usr/local/include  -DUSE_DL_IMPORT -DHAVE_NUMPY
numpydat
aset.cpp -o numpydataset.o
c++ -c -I. -I.. -I../port -I../core -I../ogr -I/usr/include/python2.2
-I/usr/inc
lude/python2.2 \
         -Wall  -O2  -I/usr/local/include  -DUSE_DL_IMPORT -DHAVE_NUMPY
gdalnume
ric.cpp -o gdalnumeric.o
/bin/true gdal_wrap.o numpydataset.o gdalnumeric.o \
        ../gdal.a ../ogr/ogr.a ../gdal.a ../port/cpl.a -lz -lm
-L/usr/local/lib
-lm -L/usr/local/lib/python2.1/config -lpython2.1.dll -o _gdalmodule.dll

$ make -f cygMakefile  install
../install-sh -d /usr/lib/python2.2/site-packages
for f in *.py _gdalmodule.dll ; do ../install-sh -c $f
/usr/lib/python2.2/site-p
ackages ; done
install:  _gdalmodule.dll does not exist
make: *** [install] Error 1
---

In earlier attempts to get python support working I noticed configure was
not finding NumPY. I downloaded the source for that and installed it
(python setup.py  install). There were a lot of warnings but no errors
(that I noticed).

[alessandro_amici@…]

Frank,

this should be solved in cvs since the libtool transition.

i don't use python bindings on cygwin, so i didn't test it
much, but the easy stuff worked last time i checked.

most probably you may close this bug.

cheers,
alessandro

[warmerdam]

Excellent, thanks!