add mac build bash

Author: digitalgust

.gitignore

@@ -2,4 +2,6 @@
 ./class2ir/target
 ./class2ir/.idea
 ./app/out/classes
-./app.exe
+./a.out
+./app/c/*.ll
+

README.md

@@ -7,11 +7,11 @@ This project is based on [class2ir](https://github.com/MParygin/class2ir), that
 So I've changed some instruction syntex, and repaired bug, enhanced functional.   
 
 ### Currently:
-Generated CentOS x64 executable file, and say "Hello world".    
+Generated CentOS_x64 and MacOS executable file, and say "Hello world".    
 
 ### Make:
 1. Enter directory java2llvm/   
-2. Run build.sh, then you will get app.exe here.   
+2. Run mac_build.sh or centos_build.sh , then you will get a.out here.   
 
 ### Requirements:
  CentOS 7.0 x86_64    

app.exe

@@ -5,7 +5,7 @@ java -cp ./class2ir/dist/class2ir.jar:./class2ir/lib/asm-7.2.jar:./class2ir/lib/
 
 cd ./app/c/
 make
-cp ./c ../../app.exe
+cp ./c ../../a.out
 make clean 
 cd ../../
 rm -rf ./app/out/classes/*

build.sh renamed to centos_build.sh

@@ -0,0 +1,13 @@
+echo need : java llvm-gcc
+
+echo compile java source *.java and convert to llvm ir file *.ll
+java -cp ./class2ir/dist/class2ir.jar:./class2ir/lib/asm-7.2.jar:./class2ir/lib/classparser.jar j2ll.Main ./app/java ./app/out/classes ./app/c/
+
+cd ./app/c/
+llvm-gcc *.c *.ll
+cp ./a.out ../../a.out 
+rm *.ll a.out
+cd ../../
+rm -rf ./app/out/classes/*
+rm -rf ./class2ir/target
+echo success