From 0caab36c0baf64216c6f4f629ba18f43bc872a45 Mon Sep 17 00:00:00 2001
From: Enrico Del Fante <enrico.delfante@gmail.com>
Date: Fri, 25 Nov 2022 10:31:23 +0100
Subject: [PATCH] Java binding compilation improvement for macos

Tries to get `JAVA_HOME` automatically if not already set
---
 bindings/java/Makefile | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/bindings/java/Makefile b/bindings/java/Makefile
index f11a6da..c92a253 100644
--- a/bindings/java/Makefile
+++ b/bindings/java/Makefile
@@ -8,15 +8,18 @@ ifeq ($(OS),Windows_NT)
 	LIBRARY_RESOURCE=ckzg4844jni.dll
 else
 	CLANG_EXECUTABLE=clang
-    GRADLE_COMMAND=./gradlew
+    	GRADLE_COMMAND=./gradlew
 	UNAME_S := $(shell uname -s)
 	ifeq ($(UNAME_S),Linux)
-		CLANG_FLAGS=-fPIC -shared
+	CLANG_FLAGS=-fPIC -shared
     	JNI_INCLUDE_FOLDER=linux
     	LIBRARY_RESOURCE=libckzg4844jni.so
 	endif
 	ifeq ($(UNAME_S),Darwin)
-		CLANG_FLAGS=-dynamiclib
+		ifeq ($(JAVA_HOME),)
+			JAVA_HOME := $(shell /usr/libexec/java_home)
+		endif
+	CLANG_FLAGS=-dynamiclib
     	JNI_INCLUDE_FOLDER=darwin
     	LIBRARY_RESOURCE=libckzg4844jni.dylib
 	endif