# HG changeset patch
# User Maciej Bliziński <maciej@opencsw.org>
# Date 1382283238 -3600
#      Sun Oct 20 16:33:58 2013 +0100
# Node ID e0baa25c88ac24b01e496f838c309d2f6a2bc74c
# Parent  34986f55a32d1bec5f1c3695fd0a53469db03625
find_library looks into Python binary's RPATH when looking for shared libraries

diff -r 34986f55a32d -r e0baa25c88ac Lib/ctypes/util.py
--- a/Lib/ctypes/util.py	Sun Oct 20 17:25:34 2013 +0300
+++ b/Lib/ctypes/util.py	Sun Oct 20 16:33:58 2013 +0100
@@ -114,16 +114,23 @@
 
     if sys.platform == "sunos5":
         # use /usr/ccs/bin/dump on solaris
-        def _get_soname(f):
+        def _get_elf_field(f, field):
             if not f:
                 return None
             cmd = "/usr/ccs/bin/dump -Lpv 2>/dev/null " + f
             with contextlib.closing(os.popen(cmd)) as f:
                 data = f.read()
-            res = re.search(r'\[.*\]\sSONAME\s+([^\s]+)', data)
+            res = re.search(r'\[.*\]\s%s\s+([^\s]+)' % field, data)
             if not res:
                 return None
             return res.group(1)
+
+        def _get_soname(f):
+            return _get_elf_field(f, 'SONAME')
+
+        def _get_rpath(f):
+            return _get_elf_field(f, 'RPATH')
+        
     else:
         def _get_soname(f):
             # assuming GNU binutils / ELF
@@ -184,7 +191,9 @@
             if not paths:
                 return None
 
-            for dir in paths.split(":"):
+            rpath = _get_rpath(sys.executable)
+            rpath = rpath.split(":") if rpath else []
+            for dir in rpath + paths.split(":"):
                 libfile = os.path.join(dir, "lib%s.so" % name)
                 if os.path.exists(libfile):
                     return libfile