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[Gambas-bugtracker] Bug #2930: C++20 issues

http://gambaswiki.org/bugtracker/edit?object=BUG.2930&from=L21haW4-

Tom CALLAWAY reported a new bug.

Summary
-------

C++20 issues

Type             : Bug
Priority         : Medium
Gambas version   : 3.19
Product          : Unknown


Description
-----------

With the newest version of poppler, we need to compile gambas3 with C++20 support. This fails currently because of how gambas.h undefines and redefines tolower/toupper. In C++20, std::tolower and std::toupper exist, and to the best of my understanding, those are reserved namespaces and cannot be overridden. In Fedora, we're hacking around this for now by wrapping that part in #if __cplusplus < 202002L, but I don't think thats the "proper" fix.


System information
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Fedora Rawhide, poppler 24.08.0


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