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[DOC] Some YJIT dependencies are no longer required

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The `capstone` crate on crates.io does not need `libcapstone` on the system
because it builds from [source].
`gdbm` is now a separate gem (thanks for extracting it!).

[source]: c31409905a/capstone-sys/build.rs (L143)
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Alan Wu 2022-05-02 14:00:35 -04:00 committed by GitHub
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doc/yjit/yjit.md
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@ -72,7 +72,7 @@ git clone https://github.com/ruby/ruby yjit
cd yjit
```
The YJIT `ruby` binary can be built with either GCC or Clang. It can be built either in dev (debug) mode or in release mode. For maximum performance, compile YJIT in release mode with GCC. More detailed build instructions are provided in the [Ruby README](https://github.com/ruby/ruby#how-to-compile-and-install). To support disassembly of the generated code, `libcapstone` is also required (`brew install capstone` on MacOS, `sudo apt-get install -y libcapstone-dev` on Ubuntu/Debian and `sudo dnf -y install capstone-devel` on Fedora).
The YJIT `ruby` binary can be built with either GCC or Clang. It can be built either in dev (debug) mode or in release mode. For maximum performance, compile YJIT in release mode with GCC. More detailed build instructions are provided in the [Ruby README](https://github.com/ruby/ruby#how-to-compile-and-install).
```
# Configure in release mode for maximum performance, build and install
@ -90,7 +90,7 @@ or
make -j install
```
On macOS, you may need to specify where to find openssl, libyaml and gdbm:
On macOS, you may need to specify where to find some libraries:
```
# Install dependencies
@ -102,7 +102,7 @@ brew install openssl readline libyaml
make -j install
```
Typically configure will choose default C compiler. To specify the C compiler, use
Typically configure will choose the default C compiler. To specify the C compiler, use
```
# Choosing a specific c compiler
export CC=/path/to/my/chosen/c/compiler