Can't Build on Debian Buster, GCC 10, Tesseract 4

[ChazSchatz]

'error: ‘TessBaseAPI’ has not been declared'

is thrown many times in the make listing.

.configure output:
./configure
-- Source: /home/fritz/Downloads/VobSub2SRT
-- Binary: /home/fritz/Downloads/VobSub2SRT/build
-- Build type: Debug
CMake Warning at CMakeModules/FindTesseract.cmake:56 (message):
You are using an old Tesseract version. Support for Tesseract 2 is
deprecated and will be removed in the future!
Call Stack (most recent call first):
CMakeLists.txt:66 (find_package)

-- Bash completion path: /usr/share/bash-completion/completions
-- vobsub2srt version: 1.0pre7-11-g0ba6e25-dirty
-- Debian architecture: amd64
-- Configuring done
-- Generating done
-- Build files have been written to: /home/fritz/Downloads/VobSub2SRT/build

[AeolianHarp]

I had to add these lines to the CMakeLists.txt file to get it to work, I added them at line 48/49:

add_compile_definitions(CONFIG_TESSERACT_NAMESPACE)
set(CMAKE_CXX_STANDARD 11)