Merge bitcoin/bitcoin#22339: doc: Document minimum required libc++ version

18c2027c76 doc: Document minimum required libc++ version (Hennadii Stepanov)

Pull request description:

  The minimum required libc++ version to compile the current master is 7.0.

  See #22324.

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  fanquake:
    ACK 18c2027c76

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fanquake 2021-06-28 11:05:46 +08:00
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@ -7,7 +7,7 @@ These are the dependencies currently used by Bitcoin Core. You can find instruct
| --- | --- | --- | --- | --- | --- | | --- | --- | --- | --- | --- | --- |
| Berkeley DB | [4.8.30](https://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html) | 4.8.x | No | | | | Berkeley DB | [4.8.30](https://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html) | 4.8.x | No | | |
| Boost | [1.71.0](https://www.boost.org/users/download/) | [1.64.0](https://github.com/bitcoin/bitcoin/pull/22320) | No | | | | Boost | [1.71.0](https://www.boost.org/users/download/) | [1.64.0](https://github.com/bitcoin/bitcoin/pull/22320) | No | | |
| Clang | | [5.0+](https://releases.llvm.org/download.html) (C++17 support) | | | | | Clang<sup>[ \* ](#note1)</sup> | | [5.0+](https://releases.llvm.org/download.html) (C++17 support) | | | |
| Expat | [2.2.7](https://libexpat.github.io/) | | No | Yes | | | Expat | [2.2.7](https://libexpat.github.io/) | | No | Yes | |
| fontconfig | [2.12.1](https://www.freedesktop.org/software/fontconfig/release/) | | No | Yes | | | fontconfig | [2.12.1](https://www.freedesktop.org/software/fontconfig/release/) | | No | Yes | |
| FreeType | [2.7.1](https://download.savannah.gnu.org/releases/freetype) | | No | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) (Android only) | | FreeType | [2.7.1](https://download.savannah.gnu.org/releases/freetype) | | No | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) (Android only) |
@ -28,6 +28,8 @@ These are the dependencies currently used by Bitcoin Core. You can find instruct
| ZeroMQ | [4.3.1](https://github.com/zeromq/libzmq/releases) | 4.0.0 | No | | | | ZeroMQ | [4.3.1](https://github.com/zeromq/libzmq/releases) | 4.0.0 | No | | |
| zlib | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) | | zlib | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) |
<a name="note1">Note \*</a> : When compiling with `-stdlib=libc++`, the minimum supported libc++ version is 7.0.
Controlling dependencies Controlling dependencies
------------------------ ------------------------
Some dependencies are not needed in all configurations. The following are some factors that affect the dependency list. Some dependencies are not needed in all configurations. The following are some factors that affect the dependency list.