[zeus][PATCH 09/10] relocatable.bbclass: Avoid an exception if an empty pkgconfig dir exist

["Anuj Mittal" <anuj.mittal@intel.com>]

From: Peter Kjellerstedt <pkj@axis.com>

Rewrite relocatable_native_pcfiles() so that it can handle that any of
the checked pkgconfig directories are empty without causing an
exception.

Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit f9c5df6dc1c13e9b05ff1b47ad84ad339f6779a4)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
---
 meta/classes/relocatable.bbclass | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/meta/classes/relocatable.bbclass b/meta/classes/relocatable.bbclass
index 582812c1cf..af04be5cca 100644
--- a/meta/classes/relocatable.bbclass
+++ b/meta/classes/relocatable.bbclass
@@ -6,13 +6,15 @@ python relocatable_binaries_preprocess() {
     rpath_replace(d.expand('${SYSROOT_DESTDIR}'), d)
 }
 
-relocatable_native_pcfiles () {
-	if [ -d ${SYSROOT_DESTDIR}${libdir}/pkgconfig ]; then
-		rel=${@os.path.relpath(d.getVar('base_prefix'), d.getVar('libdir') + "/pkgconfig")}
-		sed -i -e "s:${base_prefix}:\${pcfiledir}/$rel:g" ${SYSROOT_DESTDIR}${libdir}/pkgconfig/*.pc
-	fi
-	if [ -d ${SYSROOT_DESTDIR}${datadir}/pkgconfig ]; then
-		rel=${@os.path.relpath(d.getVar('base_prefix'), d.getVar('datadir') + "/pkgconfig")}
-		sed -i -e "s:${base_prefix}:\${pcfiledir}/$rel:g" ${SYSROOT_DESTDIR}${datadir}/pkgconfig/*.pc
-	fi
+relocatable_native_pcfiles() {
+	for dir in ${libdir}/pkgconfig ${datadir}/pkgconfig; do
+		files_template=${SYSROOT_DESTDIR}$dir/*.pc
+		# Expand to any files matching $files_template
+		files=$(echo $files_template)
+		# $files_template and $files will differ if any files were found
+		if [ "$files_template" != "$files" ]; then
+			rel=$(realpath -m --relative-to=$dir ${base_prefix})
+			sed -i -e "s:${base_prefix}:\${pcfiledir}/$rel:g" $files
+		fi
+	done
 }
-- 
2.25.4