Peform smarter version detection of GDAL so development versions are supported.

try:

    from django.contrib.gis.gdal.driver import Driver

    from django.contrib.gis.gdal.datasource import DataSource

    from django.contrib.gis.gdal.libgdal import gdal_version, gdal_full_version, gdal_release_date

    from django.contrib.gis.gdal.libgdal import gdal_version, gdal_full_version, gdal_release_date, GEOJSON, GDAL_VERSION

    from django.contrib.gis.gdal.srs import SpatialReference, CoordTransform

    from django.contrib.gis.gdal.geometries import OGRGeometry, GEOJSON

    from django.contrib.gis.gdal.geometries import OGRGeometry

    HAS_GDAL = True

except:

    HAS_GDAL, GEOJSON = False, False

import os, sys

import os, re, sys

from ctypes import c_char_p, CDLL

from ctypes.util import find_library

from django.contrib.gis.gdal.error import OGRException

    d = date_type(yy, mm, dd)

    if date: return d

    else: return d.strftime('%Y/%m/%d')

version_regex = re.compile(r'^(?P<major>\d+)\.(?P<minor>\d+)(\.(?P<subminor>\d+))?')

def gdal_version_info():

    ver = gdal_version()

    m = version_regex.match(ver)

    if not m: raise OGRException('Could not parse GDAL version string "%s"' % ver)

    return dict([(key, m.group(key)) for key in ('major', 'minor', 'subminor')])

_verinfo = gdal_version_info()

GDAL_MAJOR_VERSION = int(_verinfo['major'])

GDAL_MINOR_VERSION = int(_verinfo['minor'])

GDAL_SUBMINOR_VERSION = _verinfo['subminor'] and int(_verinfo['subminor'])

GDAL_VERSION = (GDAL_MAJOR_VERSION, GDAL_MINOR_VERSION, GDAL_SUBMINOR_VERSION)

del _verinfo

# GeoJSON support is available only in GDAL 1.5+.

if GDAL_VERSION >= (1, 5):

    GEOJSON = True

else:

    GEOJSON = False

import re

from datetime import date

from ctypes import c_char, c_char_p, c_double, c_int, c_ubyte, c_void_p, POINTER

from django.contrib.gis.gdal.envelope import OGREnvelope

from django.contrib.gis.gdal.libgdal import lgdal, gdal_version

from django.contrib.gis.gdal.libgdal import lgdal, GEOJSON

from django.contrib.gis.gdal.prototypes.errcheck import check_bool, check_envelope

from django.contrib.gis.gdal.prototypes.generation import \

    const_string_output, double_output, geom_output, int_output, \

    srs_output, string_output, void_output

# Some prototypes need to be aware of what version GDAL we have.

major, minor = map(int, gdal_version().split('.')[:2])

if major <= 1 and minor <= 4:

    GEOJSON = False

else:

    GEOJSON = True

### Generation routines specific to this module ###

def env_func(f, argtypes):

    "For getting OGREnvelopes."