linux-kernel - Re: Kbuild update

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Date:	Thu, 3 Jan 2008 23:33:44 +0100 (CET)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Sam Ravnborg <sam@...nborg.org>
cc:	linux-kbuild <linux-kbuild@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Kbuild update


On Jan 3 2008 22:32, Sam Ravnborg wrote:
>
>On top of this I have my personal todo items such as:
>- modern ncurses interface for menuconfig (ala tig, htop and others)

Sorry.. your comparison {menuconfig, htop} raises an "incompatible
pointer passed" on my side. Please explain :)


>TODO items (from my mailbox - I have plenty more)
>=================================================
>- allow kconfig to accept overrides (Jan Engelhart)
>  maybe there is a patch, needs followup

Indeed there is/was a patch. Well, the one I sent last time.
http://lkml.org/lkml/2007/10/18/206

I have updated it to Linus's current treetop.
git://computergmbh.de/linux 'kconfig' branch;

===

commit da9389c3e640f9ee261865beb6b9861fe5b30b78
Author: Jan Engelhardt <jengelh@...putergmbh.de>
Date:   Thu Jan 3 23:23:38 2008 +0100

    kconfig: allow overriding symbols
    
    Allow config variables in .config to override earlier ones in the same
    file. In other words,
    
    	# CONFIG_SECURITY is not defined
    	CONFIG_SECURITY=y
    
    will activate it. This makes it a bit easier to do
    
    	cat original-config myconfig myconfig2 ... >.config;
    
    and run *config as expected.
    
    Signed-off-by: Jan Engelhardt <jengelh@...putergmbh.de>

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index e0f402f..2853ca7 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -232,8 +232,7 @@ load:
 					sym->type = S_BOOLEAN;
 			}
 			if (sym->flags & def_flags) {
-				conf_warning("trying to reassign symbol %s", sym->name);
-				break;
+				conf_warning("override: reassigning to symbol %s", sym->name);
 			}
 			switch (sym->type) {
 			case S_BOOLEAN:
@@ -272,8 +271,7 @@ load:
 					sym->type = S_OTHER;
 			}
 			if (sym->flags & def_flags) {
-				conf_warning("trying to reassign symbol %s", sym->name);
-				break;
+				conf_warning("override: reassigning to symbol %s", sym->name);
 			}
 			if (conf_set_sym_val(sym, def, def_flags, p))
 				continue;
@@ -297,11 +295,9 @@ load:
 				}
 				break;
 			case yes:
-				if (cs->def[def].tri != no) {
-					conf_warning("%s creates inconsistent choice state", sym->name);
-					cs->flags &= ~def_flags;
-				} else
-					cs->def[def].val = sym;
+				if(cs->def[def].tri != no)
+					conf_warning("override: %s changes choice state", sym->name);
+				cs->def[def].val = sym;
 				break;
 			}
 			cs->def[def].tri = E_OR(cs->def[def].tri, sym->def[def].tri);
--
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