From dadfb45eb23adc53f8815265eef92b295fe9cebf Mon Sep 17 00:00:00 2001
From: Hiroshi Hatake <hiroshi@chronosphere.io>
Date: Thu, 4 Apr 2024 17:02:36 +0900
Subject: [PATCH] wamrc: build: macos: Prioritize for defined LLVM_DIR
 environment variable

This is because macOS's homebrew sometimes introduces the cutting edge
version of Formulae.
So, we need to make a room for user specified LLVM_DIR here.

Signed-off-by: Hiroshi Hatake <hiroshi@chronosphere.io>
---
 src/wamrc/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/wamrc/CMakeLists.txt b/src/wamrc/CMakeLists.txt
index 7b6e7d6ff6d..ba41f247bd2 100644
--- a/src/wamrc/CMakeLists.txt
+++ b/src/wamrc/CMakeLists.txt
@@ -118,7 +118,7 @@ if (NOT MSVC)
 endif ()
 
 # Searching homebrewed LLVM automatically on macOS.
-if(FLB_SYSTEM_MACOS)
+if(FLB_SYSTEM_MACOS AND NOT DEFINED ENV{LLVM_DIR})
   execute_process(
     COMMAND brew --prefix llvm
     RESULT_VARIABLE HOMEBREW_LLVM