[PATCH] deb-dl-dir: specify target architecture for apt-cache lookups

["'Cedric Hombourger' via isar-users" <isar-users@googlegroups.com>]

apt-cache needs to be told for which main architecture it should check
when listing packages via "dumpavail": it would otherwise default to its
default architecture (HOST_DISTRO_ARCH when running outside of the target
rootfs vs DISTRO_ARCH when running under chroot). Use "apt-cache -o
APT::Architecture=${DISTRO_ARCH}" for a correct listing of packages known
to apt; this approach is preferred over e.g.  "sudo chroot ${rootfs}
apt-cache dumpavail" as we avoid a sudo call and avoid running apt under
qemu (slow) when the host and target architectures are different.

Reported-by: Srinuvasan A <srinuvasan.a@siemens.com>
Signed-off-by: Cedric Hombourger <cedric.hombourger@siemens.com>
---
 meta/classes/deb-dl-dir.bbclass | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta/classes/deb-dl-dir.bbclass b/meta/classes/deb-dl-dir.bbclass
index 24b2dec7..e12144ef 100644
--- a/meta/classes/deb-dl-dir.bbclass
+++ b/meta/classes/deb-dl-dir.bbclass
@@ -64,7 +64,8 @@ debsrc_download() {
     trap "rm -f ${avail} ${wanted}" EXIT
 
     # List all packages known to apt
-    apt-cache -o Dir=${rootfs} dumpavail | debsrc_source_version_filter > ${avail}
+    apt-cache -o APT::Architecture=${DISTRO_ARCH} -o Dir=${rootfs} dumpavail \
+    | debsrc_source_version_filter > ${avail}
 
     # Use apt-ftparchive to scan all .deb files found in the download directory
     # and get the <source> <version> pairs that we wish to download
-- 
2.39.5

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