Linking instructions in Makefile

1 files changed, 3 insertions, 1 deletions

diff --git a/README.md b/README.md
index 4b84e5d35..0565cdb1f 100644
--- a/README.md
+++ b/README.md
@@ -926,10 +926,12 @@ Make sure LLVM 12 is in your `$PATH`:
 which clang-12
 ```
 
-If it is not, you will have to run this to add it:
+If it is not, you will have to run this to link it:
 
 ```bash
 export PATH=$(brew --prefix llvm@12)/bin:$PATH
+export LDFLAGS="$LDFLAGS -L$(brew --prefix llvm@12)/lib"
+export CPPFLAGS="$CPPFLAGS -I$(brew --prefix llvm@12)/include"
 ```
 
 On fish that looks like `fish_add_path (brew --prefix llvm@12)/bin`