query brew for llvm-config location if possible

1 files changed, 8 insertions, 0 deletions

diff --git a/build_odin.sh b/build_odin.sh
index 599f6190a..f283dc441 100755
--- a/build_odin.sh
+++ b/build_odin.sh
@@ -23,6 +23,14 @@ error() {
 	exit 1
 }
 
+# Brew advises people not to add llvm to their $PATH, so try and use brew to find it.
+if [ -z "$LLVM_CONFIG" ] &&  [ -n "$(command -v brew)" ]; then
+    if   [ -n "$(command -v $(brew --prefix llvm@18)/bin/llvm-config)" ]; then LLVM_CONFIG="$(brew --prefix llvm@18)/bin/llvm-config"
+    elif [ -n "$(command -v $(brew --prefix llvm@17)/bin/llvm-config)" ]; then LLVM_CONFIG="$(brew --prefix llvm@17)/bin/llvm-config"
+    elif [ -n "$(command -v $(brew --prefix llvm@14)/bin/llvm-config)" ]; then LLVM_CONFIG="$(brew --prefix llvm@14)/bin/llvm-config"
+    fi
+fi
+
 if [ -z "$LLVM_CONFIG" ]; then
 	# darwin, linux, openbsd
 	if   [ -n "$(command -v llvm-config-18)" ]; then LLVM_CONFIG="llvm-config-18"