From e575a72e37c32a0c6c7661ccb2c8f5e760ae19f5 Mon Sep 17 00:00:00 2001
From: Changaco <changaco@changaco.oy.lc>
Date: Mon, 27 Apr 2015 14:26:34 +0200
Subject: [PATCH] try to get libarchive's path from the `LIBARCHIVE` envvar

fixes #3
---
 libarchive/ffi.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/libarchive/ffi.py b/libarchive/ffi.py
index 6afb1c0..4305b3f 100644
--- a/libarchive/ffi.py
+++ b/libarchive/ffi.py
@@ -10,9 +10,10 @@
     CFUNCTYPE, POINTER,
 )
 import ctypes
-import ctypes.util
+from ctypes.util import find_library
 import logging
 import mmap
+import os
 
 from .exception import ArchiveError
 
@@ -21,8 +22,8 @@
 
 page_size = mmap.PAGESIZE
 
-_LIB_FILEPATH = ctypes.util.find_library('archive') or 'libarchive.so'
-libarchive = ctypes.cdll.LoadLibrary(_LIB_FILEPATH)
+libarchive_path = os.environ.get('LIBARCHIVE') or find_library('archive')
+libarchive = ctypes.cdll.LoadLibrary(libarchive_path)
 
 
 # Constants