doc: use llvm-config for bitcoin-tidy example

An LLVM installation will have `llvm-config` available to query for
info. Ask it for the `--cmakedir`, and use that in our bitcoin-tidy
example, rather than listing multiple different (potential) paths per
distro/OS etc.
This commit is contained in:
fanquake 2023-08-09 14:03:20 +02:00
parent 492257019d
commit d82bb90a5b
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@ -3,6 +3,9 @@
Example Usage:
```bash
cmake -S . -B build -DLLVM_DIR=/path/to/lib/cmake/llvm -DCMAKE_BUILD_TYPE=Release
make -C build -j$(nproc)
cmake -S . -B build -DLLVM_DIR=$(llvm-config --cmakedir) -DCMAKE_BUILD_TYPE=Release
cmake --build build -j$(nproc)
cmake --build build --target bitcoin-tidy-tests -j$(nproc)
```