diff --git a/src/CliFunc/project.ts b/src/CliFunc/project.ts
deleted file mode 100644
index da607fd..0000000
--- a/src/CliFunc/project.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import { cloneDeep } from "lodash"
-import NmakeGlobal from "../interface/NmakeGlobal"
-import printDebug from "../Tools/DebugPrint"
-import { popGlobalStack, pushGlobalStack } from "../Tools/GlobalStack"
-
-const project = (name:string,callback:Function) =>{
-    pushGlobalStack()
-    printDebug("adding project :"+name)
-    callback()
-    popGlobalStack()
-}
-
-export default project
\ No newline at end of file
diff --git a/src/CliFunc/tools.ts b/src/CliFunc/tools.ts
deleted file mode 100644
index 49efb49..0000000
--- a/src/CliFunc/tools.ts
+++ /dev/null
@@ -1 +0,0 @@
-export {default as project} from "./project"
\ No newline at end of file
diff --git a/src/Compiler/Compiler.ts b/src/Compiler/Compiler.ts
index 58f7f86..7e52cbf 100644
--- a/src/Compiler/Compiler.ts
+++ b/src/Compiler/Compiler.ts
@@ -1,4 +1,5 @@
 export default interface Compiler{
     compilerPath:string;
     compilerVersion:string;
+    compilerName:string
 }
\ No newline at end of file
diff --git a/src/Compiler/GppCompiler.ts b/src/Compiler/GppCompiler.ts
index 8dc2152..57f392d 100644
--- a/src/Compiler/GppCompiler.ts
+++ b/src/Compiler/GppCompiler.ts
@@ -5,10 +5,22 @@ import Compiler from "./Compiler";
 export default class GppCompiler implements Compiler{
     compilerPath: string;
     compilerVersion: string;
-    constructor(){
-        const compilerPaths = getExecutablePathsFromEnv("g++")
-        if(compilerPaths.length==0)throw Error("cannot find g++ compiler")
-        this.compilerPath=`"${compilerPaths[0]}"`
-        this.compilerVersion = tryGetCompilerVersion(this.compilerPath,"--version")
+    compilerName: string = "g++";
+    // staticCompilerName: string = "g++";
+    constructor()
+    constructor(path:string)
+    constructor(path?:string,version?:string){
+        if(path){
+            this.compilerPath = `"${path}"`
+        }else{
+            const compilerPaths = getExecutablePathsFromEnv(this.compilerName)
+            if(compilerPaths.length==0)throw Error(`cannot find ${this.compilerName} compiler`)
+            this.compilerPath =  `"${compilerPaths[0]}"`
+        }
+        if(version){
+            this.compilerVersion = version
+        }else{
+            this.compilerVersion = tryGetCompilerVersion(this.compilerPath,"--version")
+        }
     }
 }
\ No newline at end of file
diff --git a/src/Project/CppProject.ts b/src/Project/CppProject.ts
index 0808190..cffc044 100644
--- a/src/Project/CppProject.ts
+++ b/src/Project/CppProject.ts
@@ -1,4 +1,7 @@
 import GppCompiler from "../Compiler/GppCompiler";
+import printDebug from "../Tools/DebugPrint";
+import { getDefaultCompiler, setDefaultCompiler } from "../Tools/DefaultCompiler";
+import setGetDefaultCompiler from "../Tools/setGetDefaultCompiler";
 import HaveCompiler from "./interface/HaveCompiler";
 import Optimize from "./interface/Optimize";
 import SourceFiles from "./interface/SourceFiles";
@@ -9,17 +12,18 @@ export default class CppProject implements Project , SourceFiles,HaveCompiler,Op
     compiler: GppCompiler;
     sourceFiles: string[]=[];
     optimize: "fast" | "fastest" | "normal" = "fast"
+    typeName: string = "cpp";
 
     constructor(name:string)
     constructor(name:string,compiler:GppCompiler)
 
     constructor(name:string,compiler?:GppCompiler){
+        printDebug(`adding new ${this.typeName} project`)
         if(compiler){
-            this.compiler=compiler
+            this.compiler = compiler
         }else{
-            this.compiler=new GppCompiler()
+            this.compiler = setGetDefaultCompiler("g++",()=>{return new GppCompiler()})
         }
         this.name=name
-        
     }
 }
\ No newline at end of file
diff --git a/src/Project/Project.ts b/src/Project/Project.ts
index 3195a0a..0d84f92 100644
--- a/src/Project/Project.ts
+++ b/src/Project/Project.ts
@@ -1,5 +1,6 @@
 import Compiler from "../Compiler/Compiler"
 
 export default  interface Project{
-    name:string
+    name:string;
+    typeName:string
 }
\ No newline at end of file
diff --git a/src/Tools/ConstructGlobal.ts b/src/Tools/ConstructGlobal.ts
deleted file mode 100644
index 2d3cdc6..0000000
--- a/src/Tools/ConstructGlobal.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import NmakeGlobal from "../interface/NmakeGlobal"
-import { getGlobalNmake, Global } from "./GlobalStack"
-
-const constructGlobal = ()=>{
-    Global.nmake = {}
-    Global.nmake.projects = {} as NmakeGlobal[]
-}
-
-export default constructGlobal
\ No newline at end of file
diff --git a/src/Tools/DefaultCompiler.ts b/src/Tools/DefaultCompiler.ts
new file mode 100644
index 0000000..803cb4e
--- /dev/null
+++ b/src/Tools/DefaultCompiler.ts
@@ -0,0 +1,15 @@
+import Compiler from "../Compiler/Compiler"
+
+const Global = (global as any)
+
+export const setDefaultCompiler = (name:string,compiler:Compiler)=>{
+    if(!Global.defaultCompiler)Global.defaultCompiler = {};
+    const globalCompilers = Global.defaultCompiler as {[key:string]:Compiler}
+    globalCompilers[name] = compiler
+}
+
+export const getDefaultCompiler = (name:string):undefined|Compiler=>{
+    if(!Global.defaultCompiler)Global.defaultCompiler = {};
+    const globalCompilers = Global.defaultCompiler as {[key:string]:Compiler}
+    return globalCompilers[name]
+}
\ No newline at end of file
diff --git a/src/Tools/GlobalStack.ts b/src/Tools/GlobalStack.ts
deleted file mode 100644
index 3c7737d..0000000
--- a/src/Tools/GlobalStack.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-import { cloneDeep } from "lodash"
-import NmakeGlobal from "../interface/NmakeGlobal"
-import printDebug from "./DebugPrint"
-
-export const Global = global as any
-let globalNmakeStacks = Global.globalStacks as NmakeGlobal[]
-
-export const pushGlobalStack = () =>{
-    printDebug("pushing global stack")
-    if(!Global.globalStacks){Global.globalStacks = [];globalNmakeStacks = Global.globalStacks as NmakeGlobal[]}
-    globalNmakeStacks.push(Global.nmake)
-    Global.nmake = cloneDeep(Global.nmake)
-}
-
-export const popGlobalStack = ()=>{
-    printDebug("popping global stack")
-    Global.nmake = globalNmakeStacks[globalNmakeStacks.length-1]
-    globalNmakeStacks.pop()
-}
-
-export const  getGlobalNmake=():NmakeGlobal=>{
-    printDebug("getting global nmake")
-    return Global.nmake
-}
\ No newline at end of file
diff --git a/src/Tools/SetGetDefaultCompiler.ts b/src/Tools/SetGetDefaultCompiler.ts
new file mode 100644
index 0000000..bc2ef9e
--- /dev/null
+++ b/src/Tools/SetGetDefaultCompiler.ts
@@ -0,0 +1,21 @@
+import Compiler from "../Compiler/Compiler"
+import printDebug from "./DebugPrint"
+import { getDefaultCompiler, setDefaultCompiler } from "./DefaultCompiler"
+
+const setGetDefaultCompiler = (name: string, newCompiler: { (): Compiler }) => {
+    let defaultCompiler = getDefaultCompiler("g++")
+    if (defaultCompiler) {
+        return defaultCompiler
+    } else {
+        printDebug(`setting default compiler for g++`)
+        setDefaultCompiler("g++", newCompiler())
+        defaultCompiler = getDefaultCompiler("g++")
+        if (defaultCompiler) {
+            return defaultCompiler
+        } else {
+            throw Error("cannot set compiler")
+        }
+    }
+}
+
+export default setGetDefaultCompiler
\ No newline at end of file
diff --git a/src/Tools/TryGetCompilerVersion.ts b/src/Tools/TryGetCompilerVersion.ts
index e5f91dc..0bb20d3 100644
--- a/src/Tools/TryGetCompilerVersion.ts
+++ b/src/Tools/TryGetCompilerVersion.ts
@@ -1,6 +1,5 @@
 import { exec, execSync } from "child_process"
 import printDebug from "./DebugPrint";
-import util from "util";
 
 const tryGetCompilerVersion =(path:string,command:string):string=>{
     const exec_command = `${path} ${command}`
diff --git a/src/index.ts b/src/index.ts
index 7136cea..cd6bd99 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -2,7 +2,6 @@ import path from "path";
 import printDebug from "./Tools/DebugPrint";
 import { existsSync } from "fs";
 import printErrorOrDebug from "./Tools/PrintErrorOrDebug";
-import constructGlobal from "./Tools/ConstructGlobal";
 
 const argv = require('minimist')(process.argv.slice(2))
 
@@ -22,7 +21,6 @@ printDebug("adding ts-node")
 require("ts-node").register()
 
 printDebug("adding global values")
-constructGlobal();
 
 printDebug(`running file ${nmakeFilePath}`)
 require(nmakeFilePath)
diff --git a/tests/test2/nmake.ts b/tests/test2/nmake.ts
index 749c880..c4e216d 100644
--- a/tests/test2/nmake.ts
+++ b/tests/test2/nmake.ts
@@ -1,3 +1,10 @@
+import GppCompiler from "../../src/Compiler/GppCompiler";
 import CppProject from "../../src/Project/CppProject";
 
+// const compiler = new GppCompiler()
+
+new CppProject("hello");
+
+new CppProject("hello");
+
 new CppProject("hello");