Failed to build QuoteGeneration

[RodgerZhu]

Under rhel8.7, build DCAP_1.21 based source code - SGXDataCenterAttestationPrimitives/QuoteGeneration and get below error:
This error also happens in Ubuntu22.04.
DCAP_1.18 doesn't has this building error.

../inc/qcnl_config.h:41:10: fatal error: document.h: No such file or directory
#include "document.h"

[csegarragonz]

You need to make sure that you update the Git submodules first:

cd SGXDataCenterAttestationPrimitives/
git submodule update --init
cd QuoteGeneration
./download_prebuilt.sh
make