4 files changed, 5 insertions, 5 deletions

diff --git a/meta/classes/image-prelink.bbclass b/meta/classes/image-prelink.bbclass
index f3bb68b9e1..6a8afa8fa9 100644
--- a/meta/classes/image-prelink.bbclass
+++ b/meta/classes/image-prelink.bbclass
@@ -36,7 +36,7 @@ prelink_image () {
         dynamic_loader=$(linuxloader)
 
         # prelink!
-        if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
+        if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
                 bbnote " prelink: BUILD_REPRODUCIBLE_BINARIES..."
                 if [ "$REPRODUCIBLE_TIMESTAMP_ROOTFS" = "" ]; then
                         export PRELINK_TIMESTAMP=`git log -1 --pretty=%ct `
diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index ce78c43a96..1636eed6b0 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -664,7 +664,7 @@ ROOTFS_PREPROCESS_COMMAND += "${@bb.utils.contains('DISTRO_FEATURES', 'usrmerge'
 POPULATE_SDK_PRE_TARGET_COMMAND += "${@bb.utils.contains('DISTRO_FEATURES', 'usrmerge', 'create_merged_usr_symlinks_sdk; ', '',d)}"
 
 reproducible_final_image_task () {
-    if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
+    if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
         if [ "$REPRODUCIBLE_TIMESTAMP_ROOTFS" = "" ]; then
             REPRODUCIBLE_TIMESTAMP_ROOTFS=`git log -1 --pretty=%ct`
         fi
diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 9bc0e41251..dc0152f74a 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -279,7 +279,7 @@ get_cc_option () {
 
 kernel_do_compile() {
         unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
-        if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
+        if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
                 # kernel sources do not use do_unpack, so SOURCE_DATE_EPOCH may not
                 # be set....
                 if [ "$SOURCE_DATE_EPOCH" = "0" ]; then
diff --git a/meta/recipes-core/busybox/busybox.inc b/meta/recipes-core/busybox/busybox.inc
index ac6d7ca262..d1675c37aa 100644
--- a/meta/recipes-core/busybox/busybox.inc
+++ b/meta/recipes-core/busybox/busybox.inc
@@ -106,7 +106,7 @@ python () {
 }
 
 do_prepare_config () {
-        if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
+        if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
                 export KCONFIG_NOTIMESTAMP=1
         fi
         sed -e '/CONFIG_STATIC/d' \
@@ -146,7 +146,7 @@ do_configure () {
 
 do_compile() {
         unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
-        if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
+        if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
                 export KCONFIG_NOTIMESTAMP=1
         fi
         if [ "${BUSYBOX_SPLIT_SUID}" = "1" -a x`grep "CONFIG_FEATURE_INDIVIDUAL=y" .config` = x ]; then