make: build zy with the llvm backend when an llvm with headers is found; NOLLVM=1 turns it off

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 35e94b6..c89ff50 100644
--- a/README.md
+++ b/README.md
@@ -72,7 +72,7 @@ windows needs clang or gcc and powershell for the tests. the batch file is the s
 
 ### native backends
 
-on arm64, `src/core/core.c` uses its arm64 jit by default, and on x86-64 linux its x86-64 jit. other hosts use the interpreter. `-DZYINTERP` forces interpretation (`make build/bin/zyi` builds that core beside `zy`); `-DZYLLVM` enables the llvm backend when its headers and libraries are available. direct builds from the root are:
+on arm64, `src/core/core.c` uses its arm64 jit by default, and on x86-64 linux its x86-64 jit. other hosts use the interpreter. `-DZYINTERP` forces interpretation (`make build/bin/zyi` builds that core beside `zy`); `-DZYLLVM` enables the llvm backend when its headers and libraries are available. `make` builds `zy` with it whenever it finds an llvm with headers (`LLVM_CONFIG` if given, else `llvm-config`, else `llvm-config-19` on `PATH`; the gate is `llvm-c/Core.h`), prints a one-line note and builds without it otherwise, and `make NOLLVM=1` leaves it out. since `-DZYLLVM` replaces the x86-64 jit, use `NOLLVM=1` to keep that jit in `zy` on x86-64 linux. rebuild `zy` after changing either setting (`rm build/bin/zy` or `make clean`). direct builds from the root are:
 
 ```sh
 make genome