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--- django/contrib/gis/geos/libgeos.py 2017-12-02 12:36:16.000000000 -0200
+++ django/contrib/gis/geos/libgeos.py 2017-12-06 08:12:35.806014360 -0200
@@ -8,8 +8,8 @@
"""
import logging
import os
+import sys
from ctypes import CDLL, CFUNCTYPE, POINTER, Structure, c_char_p
-from ctypes.util import find_library
from django.core.exceptions import ImproperlyConfigured
from django.utils.functional import SimpleLazyObject, cached_property
@@ -19,47 +19,27 @@
def load_geos():
- # Custom library path set?
- try:
- from django.conf import settings
- lib_path = settings.GEOS_LIBRARY_PATH
- except (AttributeError, EnvironmentError,
- ImportError, ImproperlyConfigured):
- lib_path = None
-
- # Setting the appropriate names for the GEOS-C library.
- if lib_path:
- lib_names = None
- elif os.name == 'nt':
- # Windows NT libraries
- lib_names = ['geos_c', 'libgeos_c-1']
- elif os.name == 'posix':
- # *NIX libraries
- lib_names = ['geos_c', 'GEOS']
- else:
- raise ImportError('Unsupported OS "%s"' % os.name)
-
- # Using the ctypes `find_library` utility to find the path to the GEOS
- # shared library. This is better than manually specifying each library name
- # and extension (e.g., libgeos_c.[so|so.1|dylib].).
- if lib_names:
- for lib_name in lib_names:
- lib_path = find_library(lib_name)
- if lib_path is not None:
- break
-
- # No GEOS library could be found.
- if lib_path is None:
- raise ImportError(
- 'Could not find the GEOS library (tried "%s"). '
- 'Try setting GEOS_LIBRARY_PATH in your settings.' %
- '", "'.join(lib_names)
- )
# Getting the GEOS C library. The C interface (CDLL) is used for
# both *NIX and Windows.
# See the GEOS C API source code for more details on the library function calls:
# http://geos.refractions.net/ro/doxygen_docs/html/geos__c_8h-source.html
- _lgeos = CDLL(lib_path)
+ if os.name == 'posix':
+ platform = os.uname()[0]
+ if platform == 'Linux':
+ libname = 'libgeos_c.so'
+ elif platform == 'Darwin':
+ libname = 'libgeos_c.dylib'
+ _lgeos = CDLL(os.path.join(sys.prefix, 'lib', libname))
+ elif os.name == 'nt':
+ # On Windows, the GDAL binaries have some OSR routines exported with
+ # STDCALL, while others are not. Thus, the library will also need to
+ # be loaded up as WinDLL for said OSR functions that require the
+ # different calling convention.
+ libname = os.path.join(sys.prefix, 'Library', 'bin', 'geos_c.dll')
+ _lgeos = CDLL(libname)
+ else:
+ raise Exception('No valid platform name. Found {}'.format(os.name))
+
# Here we set up the prototypes for the initGEOS_r and finishGEOS_r
# routines. These functions aren't actually called until they are
# attached to a GEOS context handle -- this actually occurs in
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