Handle --with-cxx=20 configure option too

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Although wxWidgets doesn't use any C++20 features yet, still allow
compiling it in C++ 20 mode if wanted.

Update the helper macro for detecting available C++ version support from
https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
with just a minor change to de-TAB-ify it to pass our code style check
forbidding indenting with TABs.

Closes #22238.

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This commit is contained in:

Vadim Zeitlin 2022-03-27 18:06:27 +02:00

parent d47119680f

commit 762c80b809

3 changed files with 4181 additions and 9 deletions

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