Cheesy kconfig stuff:
- silent/quiet/verbose build:
- ct-ng by default only prints quit messages, such as "CC xxx",
- if using V=0, nothing is printed,
- if using V=1, the full command lines are printed,
- other values are indeterminate,
- should help in debugging the kconfig stuff;
- complete kconfig/{,m}conf generation:
- fully dynamic dependencies on source files,
- compilation of .c into .o, then linking (instead of direct linking),
- VPATH usage when not --local;
Typo + a coment moved.

/trunk/kconfig/kconfig.mk | 140 87 53 0 +++++++++++++++++++++++++++++++++--------------------
/trunk/tools/tools.mk | 12 6 6 0 ++--
/trunk/steps.mk | 6 3 3 0 +-
/trunk/samples/samples.mk | 30 15 15 0 +++++-----
/trunk/ct-ng.in | 40 28 12 0 +++++++++++----
5 files changed, 139 insertions(+), 89 deletions(-)

diff -durN gcc-4.2.1.orig/gcc/stmt.c gcc-4.2.1/gcc/stmt.c

--- gcc-4.2.1.orig/gcc/stmt.c	2007-07-19 05:25:32.000000000 +0200

+++ gcc-4.2.1/gcc/stmt.c	2007-08-03 20:37:19.000000000 +0200

@@ -2512,7 +2512,11 @@

 	  use_cost_table

 	    = (TREE_CODE (orig_type) != ENUMERAL_TYPE

 	       && estimate_case_costs (case_list));

-	  balance_case_nodes (&case_list, NULL);

+	  /* When optimizing for size, we want a straight list to avoid

+	     jumps as much as possible. This basically creates an if-else

+	     chain.  */

+	  if (!optimize_size)

+	    balance_case_nodes (&case_list, NULL);

 	  emit_case_nodes (index, case_list, default_label, index_type);

 	  emit_jump (default_label);

 	}

@@ -3070,6 +3074,7 @@

 	    {

 	      if (!node_has_low_bound (node, index_type))

 		{

+		  if (!optimize_size) /* don't jl to the .default_label. */

 		  emit_cmp_and_jump_insns (index,

 					   convert_modes

 					   (mode, imode,