[PATCH 4/7] signatures: use TOPDIR instead of BUILDDIR in wic

[Felix Moessbauer <felix.moessbauer@siemens.com>]

This replaces the local externally passed BUILDDIR
with the wic variable TOPDIR. Both point to the same location,
but TOPDIR is excluded from the signatures.

This avoids an absolute path pointing into the build host.

Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
---
 meta/classes/imagetypes_wic.bbclass | 2 +-
 scripts/isar-buildenv-internal      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/meta/classes/imagetypes_wic.bbclass b/meta/classes/imagetypes_wic.bbclass
index db7bbe71..8bafe517 100644
--- a/meta/classes/imagetypes_wic.bbclass
+++ b/meta/classes/imagetypes_wic.bbclass
@@ -166,7 +166,7 @@ EOSUDO
 generate_wic_image[vardepsexclude] += "BITBAKEDIR"
 generate_wic_image() {
     export FAKEROOTCMD=${FAKEROOTCMD}
-    export BUILDDIR=${BUILDDIR}
+    export BUILDDIR=${TOPDIR}
     export MTOOLS_SKIP_CHECK=1
     mkdir -p ${IMAGE_ROOTFS}/../pseudo
     touch ${IMAGE_ROOTFS}/../pseudo/files.db
diff --git a/scripts/isar-buildenv-internal b/scripts/isar-buildenv-internal
index fe1e65fa..ec8e4377 100755
--- a/scripts/isar-buildenv-internal
+++ b/scripts/isar-buildenv-internal
@@ -77,5 +77,5 @@ export PATH
 BBPATH="${BUILDDIR}"
 export BBPATH
 
-BB_ENV_EXTRAWHITE="BUILDDIR BITBAKEDIR SCRIPTSDIR TESTSUITEDIR http_proxy https_proxy ftp_proxy no_proxy GNUPGHOME"
+BB_ENV_EXTRAWHITE="BITBAKEDIR SCRIPTSDIR TESTSUITEDIR http_proxy https_proxy ftp_proxy no_proxy GNUPGHOME"
 export BB_ENV_EXTRAWHITE
-- 
2.30.2