Index: pypy.git/rpython/translator/platform/__init__.py
===================================================================
--- pypy.git.orig/rpython/translator/platform/__init__.py
+++ pypy.git/rpython/translator/platform/__init__.py
@@ -331,6 +331,13 @@ elif sys.platform == 'cygwin':
         host_factory = Cygwin
     else:
         host_factory = Cygwin64
+elif sys.platform.startswith('sunos'):
+    from rpython.translator.platform.linux import Linux, LinuxPIC
+    import platform
+    if platform.architecture()[0] == '64bit':
+        host_factory = LinuxPIC
+    else:
+        host_factory = Linux
 else:
     raise ValueError('unknown sys.platform "%s"', sys.platform)
 
Index: pypy.git/rpython/rlib/rposix.py
===================================================================
--- pypy.git.orig/rpython/rlib/rposix.py
+++ pypy.git/rpython/rlib/rposix.py
@@ -251,7 +251,7 @@ else:
                 'sched.h',
                 'grp.h', 'dirent.h', 'sys/stat.h', 'fcntl.h',
                 'signal.h', 'sys/utsname.h', _ptyh]
-    if sys.platform.startswith('linux') or sys.platform.startswith('gnu'):
+    if sys.platform.startswith('linux') or sys.platform.startswith('gnu') or sys.platform.startswith('sunos'):
         includes.append('sys/sysmacros.h')
     if sys.platform.startswith('freebsd') or sys.platform.startswith('openbsd'):
         includes.append('sys/ttycom.h')
Index: pypy.git/pypy/config/pypyoption.py
===================================================================
--- pypy.git.orig/pypy/config/pypyoption.py
+++ pypy.git/pypy/config/pypyoption.py
@@ -80,13 +80,6 @@ if sys.platform == "win32":
     # The _locale module is needed by site.py on Windows
     default_modules.add("_locale")
 
-if sys.platform == "sunos5":
-    working_modules.remove('fcntl')  # LOCK_NB not defined
-    working_modules.remove("_minimal_curses")
-    working_modules.remove("termios")
-    if "_cppyy" in working_modules:
-        working_modules.remove("_cppyy")  # depends on ctypes
-
 #if sys.platform.startswith("linux"):
 #    _mach = os.popen('uname -m', 'r').read().strip()
 #    if _mach.startswith(...):