common/hooks: Fix hooks when build_style=meta

common/hooks/post-install/02-remove-perl-files.sh

@@ -1,7 +1,7 @@
 # This hook removes perl pod/.packlist files.
 
 hook() {
-	if [ "$pkgname" != "perl" ]; then
+	if [ "$pkgname" != "perl" -a -d "${PKGDESTDIR}" ]; then
 		find ${PKGDESTDIR} -type f -name perllocal.pod -delete
 		find ${PKGDESTDIR} -type f -name .packlist -delete
 	fi

common/hooks/post-install/02-remove-python-bytecode-files.sh

@@ -1,5 +1,7 @@
 # This hook removes python bytecode files (.py[co]).
 
 hook() {
+    if [ -d "${PKGDESTDIR}" ]; then
         find ${PKGDESTDIR} -type f -name '*.py[co]' -delete
+    fi
 }

common/hooks/post-install/03-remove-empty-dirs.sh

@@ -1,6 +1,7 @@
 # This hooks removes empty dirs and warns about them.
 
 hook() {
+    if [ -d "${PKGDESTDIR}" ]; then
         find "${PKGDESTDIR}" -type d -empty|sort -r|while read f; do
             _dir="${f##${PKGDESTDIR}}"
             [ -z "${_dir}" ] && continue
@@ -9,4 +10,5 @@ hook() {
         done
         # Create PKGDESTDIR in case it has been removed previously.
         mkdir -p ${PKGDESTDIR}
+    fi
 }