The testsuite makes some incorrect assumptions:

  - we need to not assume "a standard gcc", so replace the -Werror flag
    with -errwarn to turn on the warnings are expected to cause compilation
    to fail.

  - don't use the -pthread flag for compilation; as Studio doesn't have any
    clue what to do with it, and we don't need it on Solaris, anyway.

  - don't force the use of gcc when compiling a test shared object; get
    that passed in from the makefile.

  - don't assume that stdin/stdout/stderr are changeable:

        https://bitbucket.org/cffi/cffi/issue/145/solaris-stdout-and-stderr-not-in-libc-not

    fixed in

        https://bitbucket.org/cffi/cffi/commits/237031079adc

  - don't assume that enums can be unsigned or are the same size as long:

    https://bitbucket.org/cffi/cffi/issue/143/test_enum_size-makes-invalid-assumptions

Also fix a problem with some assignments to void*:

    https://bitbucket.org/cffi/cffi/issue/146/incorrect-type-for-c_callback-variable

fixed in

    https://bitbucket.org/cffi/cffi/commits/51d87933eb4b

--- cffi-0.8.2/testing/test_verify.py	Thu Mar  6 22:51:56 2014
+++ cffi-0.8.2/testing/test_verify.py	Thu Mar 20 18:39:01 2014
@@ -18,8 +18,10 @@
         extra_compile_args = [
             '-Werror', '-Qunused-arguments', '-Wno-error=shorten-64-to-32']
     else:
-        # assume a standard gcc
-        extra_compile_args = ['-Werror']
+        extra_compile_args = [
+          '-errtags=yes',
+          '-errwarn=E_ASSIGNMENT_TYPE_MISMATCH,E_RETURN_VALUE_TYPE_MISMATCH'
+        ]
 
     class FFI(FFI):
         def verify(self, *args, **kwds):
--- cffi-0.8.2/testing/callback_in_thread.py	Fri Mar 21 15:58:21 2014
+++ cffi-0.8.2/testing/callback_in_thread.py	Fri Mar 21 15:58:30 2014
@@ -22,7 +22,7 @@
             pthread_create(&thread, NULL, my_wait_function, (void*)mycb);
             return 0;
         }
-    """, extra_compile_args=['-pthread'])
+    """)
     seen = []
     @ffi.callback('int(*)(int,int)')
     def mycallback(x, y):
--- cffi-0.8.2/testing/test_ownlib.py	Tue Oct  9 02:10:04 2012
+++ cffi-0.8.2/testing/test_ownlib.py	Tue Mar 25 15:39:35 2014
@@ -1,4 +1,4 @@
-import py, sys
+import os, py, sys
 import subprocess, weakref
 from cffi import FFI
 from cffi.backend_ctypes import CTypesBackend
@@ -28,7 +28,7 @@
         from testing.udir import udir
         udir.join('testownlib.c').write(SOURCE)
         subprocess.check_call(
-            'gcc testownlib.c -shared -fPIC -o testownlib.so',
+            os.getenv('TESTOWNLIB_CC') % ('testownlib.c', 'testownlib.so'),
             cwd=str(udir), shell=True)
         cls.module = str(udir.join('testownlib.so'))
 
--- cffi-0.8.2/c/test_c.py	Thu Mar  6 22:51:56 2014
+++ cffi-0.8.2/c/test_c.py	Mon Mar 24 14:53:27 2014
@@ -1102,7 +1102,7 @@
 def test_read_variable():
     ## FIXME: this test assumes glibc specific behavior, it's not compliant with C standard
     ## https://bugs.pypy.org/issue1643
-    if sys.platform == 'win32' or sys.platform == 'darwin' or sys.platform.startswith('freebsd'):
+    if not sys.platform.startswith("linux"):
         py.test.skip("untested")
     BVoidP = new_pointer_type(new_void_type())
     ll = find_and_load_library('c')
@@ -1112,7 +1112,7 @@
 def test_read_variable_as_unknown_length_array():
     ## FIXME: this test assumes glibc specific behavior, it's not compliant with C standard
     ## https://bugs.pypy.org/issue1643
-    if sys.platform == 'win32' or sys.platform == 'darwin' or sys.platform.startswith('freebsd'):
+    if not sys.platform.startswith("linux"):
         py.test.skip("untested")
     BCharP = new_pointer_type(new_primitive_type("char"))
     BArray = new_array_type(BCharP, None)
@@ -1124,7 +1124,7 @@
 def test_write_variable():
     ## FIXME: this test assumes glibc specific behavior, it's not compliant with C standard
     ## https://bugs.pypy.org/issue1643
-    if sys.platform == 'win32' or sys.platform == 'darwin' or sys.platform.startswith('freebsd'):
+    if not sys.platform.startswith("linux"):
         py.test.skip("untested")
     BVoidP = new_pointer_type(new_void_type())
     ll = find_and_load_library('c')
--- cffi-0.8.2/testing/test_verify.py	Thu Mar  6 22:51:56 2014
+++ cffi-0.8.2/testing/test_verify.py	Mon Mar 24 15:03:49 2014
@@ -1472,8 +1474,8 @@
     assert func() == 42
 
 def test_FILE_stored_in_stdout():
-    if sys.platform == 'win32':
-        py.test.skip("MSVC: cannot assign to stdout")
+    if not sys.platform.startswith("linux"):
+        py.test.skip("likely, we cannot assign to stdout")
     ffi = FFI()
     ffi.cdef("int printf(const char *, ...); FILE *setstdout(FILE *);")
     lib = ffi.verify("""
--- cffi-0.8.2/testing/test_verify.py	Thu Mar  6 22:51:56 2014
+++ cffi-0.8.2/testing/test_verify.py	Mon Mar 24 15:06:23 2014
@@ -1598,13 +1598,13 @@
              ('-123',          4, -1),
              ('-2147483647-1', 4, -1),
              ]
-    if FFI().sizeof("long") == 8:
+    if FFI().sizeof("long") == 8 and sys.platform != 'sunos5':
         cases += [('4294967296L',        8, 2**64-1),
                   ('%dUL' % (2**64-1),   8, 2**64-1),
                   ('-2147483649L',       8, -1),
                   ('%dL-1L' % (1-2**63), 8, -1)]
     for hidden_value, expected_size, expected_minus1 in cases:
-        if sys.platform == 'win32' and 'U' in hidden_value:
+        if sys.platform in ('win32', 'sunos5') and 'U' in hidden_value:
             continue   # skipped on Windows
         ffi = FFI()
         ffi.cdef("enum foo_e { AA, BB, ... };")
@@ -1629,7 +1627,7 @@
                         (maxulong, -1, ''),
                         (-1, 0xffffffff, 'U'),
                         (-1, maxulong, 'UL')]:
-        if c2c and sys.platform == 'win32':
+        if c2c and sys.platform in ('win32', 'sunos5'):
             continue     # enums may always be signed with MSVC
         ffi = FFI()
         ffi.cdef("enum foo_e { AA=%s };" % c1)
--- a/testing/test_verify.py
+++ b/testing/test_verify.py
@@ -1656,8 +1656,8 @@
     ffi = FFI()
     ffi.cdef("""
         int (*python_callback)(int how_many, int *values);
-        void *const c_callback;   /* pass this ptr to C routines */
-        int some_c_function(void *cb);
+        int (*const c_callback)(int,...);   /* pass this ptr to C routines */
+        int some_c_function(int(*cb)(int,...));
     """)
     lib = ffi.verify("""
         #include <stdarg.h>