--- a/testing/mozbase/mozinfo/mozinfo/mozinfo.py	2018-01-12 12:21:16.764318254 -0500
+++ b/testing/mozbase/mozinfo/mozinfo/mozinfo.py	2018-01-12 12:22:23.392069398 -0500
@@ -93,10 +93,11 @@
 
 if info['os'] == 'linux':
     import ctypes
+    import ctypes.util
     import errno
     PR_SET_SECCOMP = 22
     SECCOMP_MODE_FILTER = 2
-    ctypes.CDLL("libc.so.6", use_errno=True).prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, 0)
+    ctypes.CDLL(ctypes.util.find_library('c'), use_errno=True).prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, 0)
     info['has_sandbox'] = ctypes.get_errno() == errno.EFAULT
 else:
     info['has_sandbox'] = True