Enable the garbage collection module by default. --without-cycle-gc

disables it.  The gc test is moved to just after the thread test, as
is the wctype-functions test.

Modules/Setup.config is generated instead of Modules/Setup.thread.

Applied SF patch #100684 (loewis) to fix help alignment bug.

configure.in

@@ -722,6 +722,34 @@ else
     LIBOBJS="$LIBOBJS thread.o"])
 fi
 
+# Check for GC support
+AC_SUBST(USE_GC_MODULE)
+USE_GC_MODULE=""
+AC_MSG_CHECKING(for --with-cycle-gc)
+AC_ARG_WITH(cycle-gc,
+[  --with(out)-cycle-gc            disable/enable garbage collection])
+
+if test -z "$with_cycle_gc"
+then with_cycle_gc="yes"
+fi
+if test "$with_cycle_gc" = "no"
+then
+    USE_GC_MODULE="#"
+else
+    AC_DEFINE(WITH_CYCLE_GC)
+fi
+AC_MSG_RESULT($with_cycle_gc)
+
+# Check for --with-wctype-functions
+AC_MSG_CHECKING(for --with-wctype-functions)
+AC_ARG_WITH(wctype-functions, 
+[  --with-wctype-functions         use wctype.h functions], [
+if test "$withval" != no
+then AC_DEFINE(WANT_WCTYPE_FUNCTIONS) AC_MSG_RESULT(yes)
+else AC_MSG_RESULT(no)
+fi],
+[AC_MSG_RESULT(no)])
+
 # -I${DLINCLDIR} is added to the compile rule for importdl.o
 AC_SUBST(DLINCLDIR)
 DLINCLDIR=/
@@ -1106,27 +1134,6 @@ AC_MSG_RESULT($usable_wchar_t)
 # check for endianness
 AC_C_BIGENDIAN
 
-# Check for --with-wctype-functions
-AC_MSG_CHECKING(for --with-wctype-functions)
-AC_ARG_WITH(wctype-functions, 
-[  --with-wctype-functions         use wctype.h functions], [
-if test "$withval" != no
-then AC_DEFINE(WANT_WCTYPE_FUNCTIONS) AC_MSG_RESULT(yes)
-else AC_MSG_RESULT(no)
-fi],
-[AC_MSG_RESULT(no)])
-
-# Check for GC support
-AC_SUBST(USE_GC_MODULE)
-USE_GC_MODULE="#"
-AC_MSG_CHECKING(for --with-cycle-gc)
-AC_ARG_WITH(cycle-gc, [--with-cycle-gc           enable garbage collection], [
-AC_MSG_RESULT($withval)
-AC_DEFINE(WITH_CYCLE_GC)
-USE_GC_MODULE=
-],
-AC_MSG_RESULT(no))
-
 # THIS MUST BE LAST, IT CAN BREAK OTHER TESTS!
 # Add sys/socket.h to confdefs.h
 cat >> confdefs.h <<\EOF
@@ -1142,4 +1149,4 @@ AC_OUTPUT(Makefile \
  Parser/Makefile \
  Python/Makefile \
  Modules/Makefile.pre \
- Modules/Setup.thread)
+ Modules/Setup.config)