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Update INSTALL.md for Charconv

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Increases GCC requirement to 11 for Charconv support (which is part of c++17)

Technicially it also builds with older gcc versions when boost 1.85 is available but that combination seems unlikely and i didn't want to make INSTALL.md too complicated.

The upcoming clang 20 will also support charconv by itself, but again it felt silly to mention something that is not available yet.
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gfgtdf 2024-12-09 18:02:03 +01:00 • committed by GitHub
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INSTALL.md
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@ -2,7 +2,7 @@
## Prerequisites
Wesnoth requires a compiler with sufficient C++17 support such as GCC 8 and
Wesnoth requires a compiler with sufficient C++17 support such as GCC 11 and
later, or a version of Clang with equivalent support.
You'll need to have these libraries and their development headers installed in
@ -19,6 +19,7 @@ order to build Wesnoth:
* System
* Coroutine
* Graph
* Charconv (This requires boost 1.85 or higher and is optional but reccomended especially for clang builds)
* SDL2 libraries:
* SDL2 >= 2.0.18 (macOS: 2.0.22 due to needing https://github.com/libsdl-org/SDL/commit/3bebdaccb7bff8c40438856081d404a7ce3def30)
* SDL2_image >= 2.0.2 (with PNG, JPEG, and WEBP support)