BLD: Unset runtime_library_dirs on Cygwin

Cygwin doesn't have -rpath.

Also the file name will most commonly be /usr/bin/cyggeos_c-1.dll, so make sure the glob allows that.

Author: DWesl

packages/basemap/setup.py

@@ -111,15 +111,15 @@ def run(self):
     library_dirs.append(os.path.join(geos_install_prefix, "lib"))
     library_dirs.append(os.path.join(geos_install_prefix, "lib64"))
     runtime_library_dirs = library_dirs
-    if os.name == "nt":
+    if os.name == "nt" or sys.platform == "cygwin":
         # On Windows:
         # - DLLs get installed under `bin`.
         # - We need to inject later the DLL in the wheel using `data_files`.
         # - We do not use `runtime_library_dirs` as workaround for a
         #   `distutils` bug (http://bugs.python.org/issue2437).
         library_dirs.append(os.path.join(geos_install_prefix, "bin"))
         runtime_library_dirs = []
-        dlls = glob.glob(os.path.join(geos_install_prefix, "*", "geos_c.dll"))
+        dlls = glob.glob(os.path.join(geos_install_prefix, "*", "*geos_c*.dll"))
         if dlls:
             data_files.append(("../..", sorted(dlls)))