image-mklibs/package_ipk: Remove bashisms

We now support using dash but these bashisms triggered build failures for me
when using it. This replaces the code with something which works on dash.

(From OE-Core rev: 4a85312568a6bb052cc511c15b4ae842ff7f8e59)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/meta/classes/package_ipk.bbclass b/meta/classes/package_ipk.bbclass
index aeabc11018..36dedb9c61 100644
--- a/meta/classes/package_ipk.bbclass
+++ b/meta/classes/package_ipk.bbclass
@@ -72,8 +72,10 @@ package_tryout_install_multilib_ipk() {
                 local ipkg_args="-f ${INSTALL_CONF_IPK} -o ${target_rootfs} --force_overwrite"
                 local selected_pkg=""
                 local pkgname_prefix="${item}-"
+                local pkgname_len=${#pkgname_prefix}
                 for pkg in ${INSTALL_PACKAGES_MULTILIB_IPK}; do
-                        if [ ${pkg:0:${#pkgname_prefix}} == ${pkgname_prefix} ]; then
+                        local pkgname=$(echo $pkg | awk -v var=$pkgname_len '{ pkgname=substr($1, 1, var - 1); print pkgname; }' )
+                        if [ ${pkgname} = ${pkgname_prefix} ]; then
                             selected_pkg="${selected_pkg} ${pkg}"
                         fi
                 done
@@ -94,7 +96,9 @@ split_multilib_packages() {
                 is_multilib=0
                 for item in ${MULTILIB_VARIANTS}; do
                         local pkgname_prefix="${item}-"
-                        if [ ${pkg:0:${#pkgname_prefix}} == ${pkgname_prefix} ]; then
+                        local pkgname_len=${#pkgname_prefix}
+                        local pkgname=$(echo $pkg | awk -v var=$pkgname_len '{ pkgname=substr($1, 1, var - 1); print pkgname; }' )
+                        if [ ${pkgname} = ${pkgname_prefix} ]; then
                                 is_multilib=1
                                 break
                         fi