In linux env add fallback load dll for libc.so.6
@@ -165,7 +165,7 @@ if sys.platform.startswith('linux'):
if not lgeos:
lgeos = load_dll('geos_c',
fallbacks=['libgeos_c.so.1', 'libgeos_c.so'])
- free = load_dll('c').free
+ free = load_dll('c', fallbacks=['libc.so.6']).free
free.argtypes = [c_void_p]
free.restype = None
