Delphi 11.3 E2026 Constant expression expected

[AlwynNomad]

I'm getting the below errors when installing dclIndySecOpenSSL:

[dcc32 Error] openssl_macros.inc(78): E2026 Constant expression expected
[dcc32 Error] openssl_macros.inc(81): E2026 Constant expression expected
[dcc32 Error] openssl_macros.inc(146): E2026 Constant expression expected