find libblosc2 independent of suffix

tables/__init__.py

@@ -8,20 +8,23 @@
 """
 import os
 from ctypes import cdll
+from ctypes.util import find_library
 import platform
 
 
 # Load the blosc2 library, and if not found in standard locations,
 # try this directory (it should be automatically copied in setup.py).
-current_dir = os.path.dirname(__file__)
-platform_system = platform.system()
-blosc2_lib = "libblosc2"
-if platform_system == "Linux":
-    blosc2_lib += ".so"
-elif platform_system == "Darwin":
-    blosc2_lib += ".dylib"
-else:
-    blosc2_lib += ".dll"
+blosc2_lib = find_library("libblosc2")
+if blosc2_lib is None:
+    current_dir = os.path.dirname(__file__)
+    platform_system = platform.system()
+    blosc2_lib = "libblosc2"
+    if platform_system == "Linux":
+        blosc2_lib += ".so"
+    elif platform_system == "Darwin":
+        blosc2_lib += ".dylib"
+    else:
+        blosc2_lib += ".dll"
 try:
     cdll.LoadLibrary(blosc2_lib)
 except OSError: