use fakeroot + fakechroot on travis arm (unpriviledged lxd containers)

.travis.yml

@@ -19,8 +19,9 @@ services:
     - sudo rm -f /usr/local/bin/jq
   install:
     - sudo make .installed-requirements
+    - 'if [[ "$TRAVIS_CPU_ARCH" == "arm64" ]] ; then sudo apt-get update && sudo apt-get install -y fakeroot fakechroot ; fi'
   script:
-    - sudo bash buildone $DIST $PLATFORM
+    - 'if [[ "$TRAVIS_CPU_ARCH" == "arm64" ]] ; then fakechroot fakeroot bash buildone $DIST $PLATFORM ; else sudo bash buildone $DIST $PLATFORM ; fi'
     - 'if [[ "$TRAVIS_BRANCH" == "master" && "$DIST" == "buster" ]] ; then sudo bash buildone_snapshot $DIST "$(./snapshot_id)" $PLATFORM ; fi'
   after_success:
     - 'if [[ "$TRAVIS_BRANCH" == "master" && "$DIST" == "buster" ]] ; then sudo docker tag "bitnami/minideb:$DIST-$PLATFORM" "$BASENAME:latest-$PLATFORM" ; fi'

mkimage

@@ -54,6 +54,9 @@ if [ "$DIST" != "unstable" ]; then
     echo "deb ${sec_repo_url} $DIST/updates main" >> "$rootfsDir/etc/apt/sources.list"
 fi
 
+LD_LIBRARY_PATH="$rootfsDir/lib:$rootfsDir/usr/local/lib:$rootfsDir/usr/lib/$(gcc -dumpmachine)"
+export LD_LIBRARY_PATH
+
 chroot "$rootfsDir" apt-get update
 chroot "$rootfsDir" apt-get upgrade -y -o Dpkg::Options::="--force-confdef"
 
@@ -229,7 +232,7 @@ for DIR in $DIRS_TO_TRIM; do
 done
 # Remove the aux-cache as it isn't reproducible. It doesn't seem to
 # cause any problems to remove it.
-rm "$rootfsDir/var/cache/ldconfig/aux-cache"
+rm -f "$rootfsDir/var/cache/ldconfig/aux-cache"
 # Remove /usr/share/doc, but leave copyright files to be sure that we
 # comply with all licenses.
 # `mindepth 2` as we only want to remove files within the per-package