autotools: Give in and force CONFIG_SHELL to bash

At present, CONFIG_SHELL becomes /bin/sh if its bash and /bin/bash if not. This
isn't deterministic and leads to changes in ptest packages which include Makefiles.

At first glance you'd think we'd hardcode to /bin/sh since most system shells are sane.

Sadly the dash vs. bash leads to quoting differences in configure.

The bash default is probably the safest option since configure tries to find bash
and this is what most systems would end up using.

The end result is a more consisent build environment.

[YOCTO #13752]

(From OE-Core rev: 33b1e27c29ed05da783f814cf9c3035675087ecc)

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

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/classes/autotools.bbclass b/meta/classes/autotools.bbclass
index 3d22ad0255..6c2a33ac72 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 ! ${CACHED_CONFIGUREVARS} $cfgscript ${CONFIGUREOPTS} ${EXTRA_OECONF} "$@"; then
+                if ! ${CACHED_CONFIGUREVARS} CONFIG_SHELL=/bin/bash $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"