Environment

• Tesseract Version: 5.0 alpha
• Commit Number: e3fd938
• Platform: Linux debian 4.9.0-14-amd64 defect issue #1 SMP Debian 4.9.246-2 (2020-12-17) x86_64 GNU/Linux

gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1)

g++ 6.3 fails to compile commit e3fd938.

config.log

make.log