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From 85991e0d7f0e631240f3f6233bd65d1128a66dec Mon Sep 17 00:00:00 2001
From: Frederik Rietdijk <fridh@fridh.nl>
Date: Thu, 14 Sep 2017 10:00:31 +0200
Subject: [PATCH] ctypes.util: support LD_LIBRARY_PATH
Backports support for LD_LIBRARY_PATH from 3.6
---
Lib/ctypes/util.py | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/Lib/ctypes/util.py b/Lib/ctypes/util.py
index 780cd5d21b..d7ac15070f 100644
--- a/Lib/ctypes/util.py
+++ b/Lib/ctypes/util.py
@@ -181,8 +181,32 @@ elif os.name == "posix":
def _findSoname_ldconfig(name):
return None
+ def _findLib_ld(name):
+ # See issue #9998 for why this is needed
+ expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
+ cmd = ['ld', '-t']
+ libpath = os.environ.get('LD_LIBRARY_PATH')
+ if libpath:
+ for d in libpath.split(':'):
+ cmd.extend(['-L', d])
+ cmd.extend(['-o', os.devnull, '-l%s' % name])
+ result = None
+ try:
+ p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE,
+ universal_newlines=True)
+ out, _ = p.communicate()
+ res = re.search(expr, os.fsdecode(out))
+ if res:
+ result = res.group(0)
+ except Exception as e:
+ pass # result will be None
+ return result
+
def find_library(name):
- return _findSoname_ldconfig(name) or _get_soname(_findLib_gcc(name))
+ # See issue #9998
+ return _findSoname_ldconfig(name) or \
+ _get_soname(_findLib_gcc(name) or _findLib_ld(name))
################################################################
# test code
--
2.14.1
|