Shut up warnings for setgroups() on Linux -- you have to #include
<grp.h> it seems.  This requires yet another configure test.
diff --git a/pyconfig.h.in b/pyconfig.h.in
index 8967cc6..fe8d262 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -312,9 +312,6 @@
 /* The number of bytes in a wchar_t.  */
 #undef SIZEOF_WCHAR_T
 
-/* Define if you have the _getpty function.  */
-#undef HAVE__GETPTY
-
 /* Define if you have the alarm function.  */
 #undef HAVE_ALARM
 
@@ -417,6 +414,9 @@
 /* Define if you have the getpriority function.  */
 #undef HAVE_GETPRIORITY
 
+/* Define if you have the _getpty function.  */
+#undef HAVE__GETPTY
+
 /* Define if you have the getpwent function.  */
 #undef HAVE_GETPWENT
 
@@ -591,14 +591,14 @@
 /* Define if you have the waitpid function.  */
 #undef HAVE_WAITPID
 
-/* Define if you have the <db.h> header file.  */
-#undef HAVE_DB_H
+/* Define if you have the <db_185.h> header file.  */
+#undef HAVE_DB_185_H
 
 /* Define if you have the <db1/ndbm.h> header file.  */
 #undef HAVE_DB1_NDBM_H
 
-/* Define if you have the <db_185.h> header file.  */
-#undef HAVE_DB_185_H
+/* Define if you have the <db.h> header file.  */
+#undef HAVE_DB_H
 
 /* Define if you have the <dirent.h> header file.  */
 #undef HAVE_DIRENT_H
@@ -612,6 +612,9 @@
 /* Define if you have the <gdbm/ndbm.h> header file.  */
 #undef HAVE_GDBM_NDBM_H
 
+/* Define if you have the <grp.h> header file.  */
+#undef HAVE_GRP_H
+
 /* Define if you have the <langinfo.h> header file.  */
 #undef HAVE_LANGINFO_H