Backport 5cfe8af7abb2.

Stefan Krah · Stefan Krah · commit ffc3dee5aee9 · 2012-09-30T21:26:33.000+02:00
diff --git a/setup.py b/setup.py
@@ -1985,6 +1985,7 @@ def _decimal_ext(self):
                 # solaris: problems with register allocation.
                 # icc >= 11.0 works as well.
                 define_macros = config['ppro']
+                extra_compile_args.append('-Wno-unknown-pragmas')
             else:
                 define_macros = config['ansi32']
         else:
