打开全局调试开关时，才输出找到编译器工具目录的日志

Author: nnhy

Src/NewLife.Build/GCC.cs

@@ -87,7 +87,7 @@ public GCCLocation()
                     ToolPath = reg.GetValue("InstallFolder") + "";
                     if (ToolPath.Contains(".")) Version = ToolPath.AsDirectory().Name;
 
-                    if (!String.IsNullOrEmpty(ToolPath)) XTrace.WriteLine("注册表 {0} {1}", ToolPath, Version);
+                    WriteLog("注册表 {0} {1}", ToolPath, Version);
                 }
             }
             #endregion
@@ -109,7 +109,7 @@ public GCCLocation()
                             ToolPath = p;
                             Version = ver;
 
-                            XTrace.WriteLine("本地 {0} {1}", p, ver);
+                            WriteLog("本地 {0} {1}", p, ver);
                         }
                     }
                 }
@@ -129,5 +129,10 @@ String GetVer(String path)
 
             return fi.Name.Substring(fi.Name.LastIndexOf("-") + 1).TrimEnd(".exe");
         }
+
+        void WriteLog(String format, params Object[] args)
+        {
+            if (XTrace.Debug) XTrace.WriteLine(format, args);
+        }
     }
 }

Src/NewLife.Build/ICC.cs

@@ -93,7 +93,7 @@ public ICCLocation()
                     ToolPath = reg.GetValue("LastInstallPath") + "";
                     if (ToolPath.Contains(".")) Version = ToolPath.AsDirectory().Name.Split(" ").Last();
 
-                    if (!String.IsNullOrEmpty(ToolPath)) XTrace.WriteLine("注册表 {0} {1}", ToolPath, Version);
+                    WriteLog("注册表 {0} {1}", ToolPath, Version);
                 }
             }
             #endregion
@@ -118,7 +118,7 @@ public ICCLocation()
                             ToolPath = p;
                             Version = ver;
 
-                            XTrace.WriteLine("本地 {0} {1}", ToolPath, Version);
+                            WriteLog("本地 {0} {1}", ToolPath, Version);
                         }
                     }
                 }
@@ -133,5 +133,10 @@ String GetVer(String path)
 
             return path.AsDirectory().Name.Split(" ").LastOrDefault();
         }
+
+        void WriteLog(String format, params Object[] args)
+        {
+            if (XTrace.Debug) XTrace.WriteLine(format, args);
+        }
     }
 }

Src/NewLife.Build/MDK.cs

@@ -367,7 +367,7 @@ public MDKLocation()
                     //Version = new Version(ss[0], ss[1]);
                     Version = reg.GetValue("Version") + "";
 
-                    if (!String.IsNullOrEmpty(ToolPath)) XTrace.WriteLine("注册表 {0} {1}", ToolPath, Version);
+                    WriteLog("注册表 {0} {1}", ToolPath, Version);
                 }
             }
             #endregion
@@ -388,7 +388,7 @@ public MDKLocation()
                             ToolPath = p;
                             Version = ver;
 
-                            XTrace.WriteLine("本地 {0} {1}", p, ver);
+                            WriteLog("本地 {0} {1}", p, ver);
                         }
                     }
                 }
@@ -439,5 +439,10 @@ String GetVer(String path)
 
             return "";
         }
+
+        void WriteLog(String format,params Object[] args)
+        {
+            if (XTrace.Debug) XTrace.WriteLine(format, args);
+        }
     }
 }