diff --git a/shapely/geos.py b/shapely/geos.py index 4619732..1abdb5e 100644 --- a/shapely/geos.py +++ b/shapely/geos.py @@ -55,148 +55,21 @@ def load_dll(libname, fallbacks=None, mode=DEFAULT_MODE): "Could not find lib {} or load any of its variants {}.".format( libname, fallbacks or [])) -_lgeos = None def exists_conda_env(): """Does this module exist in a conda environment?""" return os.path.exists(os.path.join(sys.prefix, 'conda-meta')) - -if sys.platform.startswith('linux'): - # Test to see if we have a wheel repaired by auditwheel which contains its - # own libgeos_c. Note: auditwheel 3.1 changed the location of libs. - geos_whl_so = glob.glob( - os.path.abspath(os.path.join(os.path.dirname(__file__), ".libs/libgeos*.so*")) - ) or glob.glob( - os.path.abspath( - os.path.join( - os.path.dirname(__file__), "..", "Shapely.libs", "libgeos*.so*" - ) - ) - ) - - if len(geos_whl_so) > 0: - # We have observed problems with CDLL of libgeos_c not automatically - # loading the sibling c++ library since the change made by auditwheel - # 3.1, so we explicitly load them both. - geos_whl_so = sorted(geos_whl_so) - CDLL(geos_whl_so[0]) - _lgeos = CDLL(geos_whl_so[-1]) - LOG.debug("Found GEOS DLL: %r, using it.", _lgeos) - - elif hasattr(sys, 'frozen'): - geos_pyinstaller_so = glob.glob(os.path.join(sys.prefix, 'libgeos_c-*.so.*')) - if len(geos_pyinstaller_so) >= 1: - _lgeos = CDLL(geos_pyinstaller_so[0]) - LOG.debug("Found GEOS DLL: %r, using it.", _lgeos) - elif exists_conda_env(): - # conda package. - _lgeos = CDLL(os.path.join(sys.prefix, 'lib', 'libgeos_c.so')) - else: - alt_paths = [ - 'libgeos_c.so.1', - 'libgeos_c.so', - ] - _lgeos = load_dll('geos_c', fallbacks=alt_paths) - +_lgeos = CDLL('@libgeos_c@') +if sys.platform == 'darwin': # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen # manpage says, "If filename is NULL, then the returned handle is for the # main program". This way we can let the linker do the work to figure out # which libc Python is actually using. free = CDLL(None).free - free.argtypes = [c_void_p] - free.restype = None - -elif sys.platform == 'darwin': - # Test to see if we have a delocated wheel with a GEOS dylib. - geos_whl_dylib = os.path.abspath(os.path.join(os.path.dirname( - __file__), '.dylibs/libgeos_c.1.dylib')) - - if os.path.exists(geos_whl_dylib): - handle = CDLL(None) - if hasattr(handle, "initGEOS_r"): - LOG.debug("GEOS already loaded") - _lgeos = handle - else: - _lgeos = CDLL(geos_whl_dylib) - LOG.debug("Found GEOS DLL: %r, using it.", _lgeos) - - elif exists_conda_env(): - # conda package. - _lgeos = CDLL(os.path.join(sys.prefix, 'lib', 'libgeos_c.dylib')) - else: - if hasattr(sys, 'frozen'): - try: - # .app file from py2app - alt_paths = [os.path.join( - os.environ['RESOURCEPATH'], '..', 'Frameworks', - 'libgeos_c.dylib')] - except KeyError: - alt_paths = [ - # binary from pyinstaller - os.path.join(sys.executable, 'libgeos_c.dylib'), - # .app from cx_Freeze - os.path.join(os.path.dirname(sys.executable), 'libgeos_c.1.dylib')] - if hasattr(sys, '_MEIPASS'): - alt_paths.append( - os.path.join(sys._MEIPASS, 'libgeos_c.1.dylib')) - else: - alt_paths = [ - # The Framework build from Kyng Chaos - "/Library/Frameworks/GEOS.framework/Versions/Current/GEOS", - # macports - '/opt/local/lib/libgeos_c.dylib', - # homebrew Intel - '/usr/local/lib/libgeos_c.dylib', - # homebrew Apple Silicon - '/opt/homebrew/lib/libgeos_c.dylib', - ] - _lgeos = load_dll('geos_c', fallbacks=alt_paths) - - free = CDLL(None).free - free.argtypes = [c_void_p] - free.restype = None - -elif sys.platform == 'win32': - _conda_dll_path = os.path.join(sys.prefix, 'Library', 'bin', 'geos_c.dll') - if exists_conda_env() and os.path.exists(_conda_dll_path): - # conda package. - _lgeos = CDLL(_conda_dll_path) - else: - try: - egg_dlls = os.path.abspath( - os.path.join(os.path.dirname(__file__), 'DLLs')) - if hasattr(sys, '_MEIPASS'): - wininst_dlls = sys._MEIPASS - elif hasattr(sys, "frozen"): - wininst_dlls = os.path.normpath( - os.path.abspath(sys.executable + '../../DLLS')) - else: - wininst_dlls = os.path.abspath(os.__file__ + "../../../DLLs") - original_path = os.environ['PATH'] - os.environ['PATH'] = "%s;%s;%s" % \ - (egg_dlls, wininst_dlls, original_path) - _lgeos = load_dll("geos_c.dll") - except (ImportError, WindowsError, OSError): - raise - - def free(m): - try: - cdll.msvcrt.free(m) - except WindowsError: - # XXX: See http://trac.gispython.org/projects/PCL/ticket/149 - pass - -elif sys.platform == 'sunos5': - _lgeos = load_dll('geos_c', fallbacks=['libgeos_c.so.1', 'libgeos_c.so']) - free.restype = None - free.argtypes = [c_void_p] - free.restype = None - -else: # other *nix systems - _lgeos = load_dll('geos_c', fallbacks=['libgeos_c.so.1', 'libgeos_c.so']) - free = CDLL(None).free - free.argtypes = [c_void_p] - free.restype = None +else: + free = CDLL('@libc@').free +free.argtypes = [c_void_p] +free.restype = None def _geos_version(): diff --git a/tests/test_dlls.py b/tests/test_dlls.py index c71da8e..fae9da6 100644 --- a/tests/test_dlls.py +++ b/tests/test_dlls.py @@ -12,10 +12,4 @@ class LoadingTestCase(unittest.TestCase): @unittest.skipIf(sys.platform == "win32", "FIXME: adapt test for win32") def test_fallbacks(self): load_dll('geos_c', fallbacks=[ - os.path.join(sys.prefix, "lib", "libgeos_c.dylib"), # anaconda (Mac OS X) - '/opt/local/lib/libgeos_c.dylib', # MacPorts - '/usr/local/lib/libgeos_c.dylib', # homebrew (Mac OS X) - '/opt/homebrew/lib/libgeos_c.dylib', # homebrew (macOS) - os.path.join(sys.prefix, "lib", "libgeos_c.so"), # anaconda (Linux) - 'libgeos_c.so.1', - 'libgeos_c.so']) + '@libgeos_c@'])