tree 4722fb2c22107017ee84f8905df3363ae186f5c4
parent 6a3c9d585eb55351648290dfa4d52292e0adad13
author William Roberts <william.c.roberts@intel.com> 1657645450 -0500
committer Stefan Berger <stefanb@us.ibm.com> 1657648056 -0400

configure: check for bash

PCR Bank verification needs bash, so check for bash. While at it use the
autoconf shell construct macros over raw shell syntax which is slightly
more portable.

Examples:
./configure --enable-default-pcr-banks=sha256,sha920
checking which PCR banks to activate by default... configure: error: sha256,sha920 is an invalid list of PCR banks

./configure --enable-default-pcr-banks=sha256,sha512
checking which PCR banks to activate by default... sha256,sha512

./configure
checking which PCR banks to activate by default... sha256

Signed-off-by: William Roberts <william.c.roberts@intel.com>