This patch contains some workarounds specially needed for Solaris 11.

Due to

    18617452 SIZEOF_WCHAR_T undefined in pyconfig.h on 11.2

SIZEOF_WCHAR_T isn't ever defined, leading to poor support of wchar_t and
unicode.  Defining that constant prior to including wchar_helper.h helps
work around most of the resulting test failures.

In Solaris 12, libnsl has been turned into a filter library for libc, and
symbols like inet_ntoa are available directly from libc.  But this has not
happened in Solaris 11, so opening libnsl is required in order to find that
particular symbol.

--- cffi-0.8.2/c/_cffi_backend.c	2014-03-06 22:51:56.000000000 -0800
+++ cffi-0.8.2/c/_cffi_backend.c	2014-04-17 15:46:17.277512131 -0700
@@ -219,6 +219,7 @@ static void init_errno(void) { }
 # include "file_emulator.h"
 #endif
 
+#define SIZEOF_WCHAR_T 4
 #ifdef HAVE_WCHAR_H
 # include "wchar_helper.h"
 #endif
--- cffi-0.8.2/testing/test_function.py	2014-03-06 22:51:56.000000000 -0800
+++ cffi-0.8.2/testing/test_function.py	2014-04-17 13:37:51.091873904 -0700
@@ -286,7 +286,7 @@ class TestFunction(object):
             struct in_addr { unsigned int s_addr; };
             char *inet_ntoa(struct in_addr in);
         """)
-        ffi.C = ffi.dlopen(None)
+        ffi.C = ffi.dlopen("nsl")
         ina = ffi.new("struct in_addr *", [0x04040404])
         a = ffi.C.inet_ntoa(ina[0])
         assert ffi.string(a) == b'4.4.4.4'