[OE-core][PATCH] autotools: CONFIG_SHELL defaults

["Andrej Valek" <andrej.valek@siemens.com>]

Do not hard-code default shell to /bin/bash even if CONFIG_SHELL is already
set to other shell, but keep /bin/bash as a default. This will fix a shadow
issue, where CONFIG_SHELL is exported to /bin/sh, but /bin/bash is used
even if it's not installed.

Signed-off-by: Andrej Kozemcak <andrej.kozemcak@siemens.com>
Signed-off-by: Andrej Valek <andrej.valek@siemens.com>
---
 meta/classes/autotools.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/classes/autotools.bbclass b/meta/classes/autotools.bbclass
index 70804b82b4..2ceb790b5c 100644
--- a/meta/classes/autotools.bbclass
+++ b/meta/classes/autotools.bbclass
@@ -90,7 +90,7 @@ oe_runconf () {
 	cfgscript=`python3 -c "import os; print(os.path.relpath(os.path.dirname('${CONFIGURE_SCRIPT}'), '.'))"`/$cfgscript_name
 	if [ -x "$cfgscript" ] ; then
 		bbnote "Running $cfgscript ${CONFIGUREOPTS} ${EXTRA_OECONF} $@"
-		if ! CONFIG_SHELL=/bin/bash ${CACHED_CONFIGUREVARS} $cfgscript ${CONFIGUREOPTS} ${EXTRA_OECONF} "$@"; then
+		if ! CONFIG_SHELL=${CONFIG_SHELL-/bin/bash} ${CACHED_CONFIGUREVARS} $cfgscript ${CONFIGUREOPTS} ${EXTRA_OECONF} "$@"; then
 			bbnote "The following config.log files may provide further information."
 			bbnote `find ${B} -ignore_readdir_race -type f -name config.log`
 			bbfatal_log "configure failed"
-- 
2.11.0