shadow: improve reproducibility by hard-coding shell path

The shadow configure script tries really hard to detect the running
shell to make sure it doesn't do unsupported calls.

On my system the shell is detected as /bin/sh, while a build in an
ubuntu docker it resolves to /bin/bash. And since the shell path is
baked into the target binaries through config.h, the build becomes
inreproducible.

Fix reproducibility by hard-coding the shell to be /bin/sh

Signed-off-by: Martin Hundebøll <martin@geanix.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/recipes-extended/shadow/shadow.inc b/meta/recipes-extended/shadow/shadow.inc
index 0fa80a282a87f9eb54c643842a65458e44c946ce..09c37ef8a354c5b77d18268aeb6a2dfda632d4bd 100644 (file)
--- a/meta/recipes-extended/shadow/shadow.inc
+++ b/meta/recipes-extended/shadow/shadow.inc
@@ -45,6 +45,8 @@ PAM_SRC_URI = "file://pam.d/chfn \
 
 inherit autotools gettext
 
+export CONFIG_SHELL="/bin/sh"
+
 EXTRA_OECONF += "--without-audit \
                  --without-libcrack \
                  --without-selinux \