[PATCH 2/4] kconfig: streamline_config.pl: fix out-of-tree builds

[Alan Jenkins]

We should look for Kconfig under $srctree, just like zconf.l does.
This allows "make localmodconfig" to work when using a separate build
directory (e.g. make O=../build).

Signed-off-by: Alan Jenkins <alan-jenkins@xxxxxxxxxxxxxx>
---
 scripts/kconfig/streamline_config.pl |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index 7d898e3..7a7bcf7 100644
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -46,7 +46,7 @@ use warnings;
 #    make oldconfig
 #
 my $config = ".config";
-my $linuxpath = ".";
+my $srctree = $ENV{"srctree"} || ".";
 
 my $uname = `uname -r`;
 chomp $uname;
@@ -114,7 +114,7 @@ sub find_config {
 
 find_config;
 
-my @makefiles = `find $linuxpath -name Makefile`;
+my @makefiles = `find $srctree -name Makefile`;
 my %depends;
 my %selects;
 my %prompts;
@@ -135,7 +135,11 @@ sub read_kconfig {
     my $config;
     my @kconfigs;
 
-    open(KIN, $kconfig) || die "Can't open $kconfig";
+    open(KIN, $kconfig) || (
+	$kconfig =~ "^[^/]" &&
+	open(KIN, $srctree . "/" . $kconfig)
+    ) || die "Can't open $kconfig";
+
     while (<KIN>) {
 	chomp;
 
-- 
1.6.3.3

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