set DOTNET_MULTILEVEL_LOOKUP=0 to get customDotNetCli path working, f…

…ixes #820
dotnet · Jul 4, 2018 · 844e959 · 844e959
1 parent 33e5686
commit 844e959
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/BenchmarkDotNet/Toolchains/DotNetCli/DotNetCliCommandExecutor.cs b/src/BenchmarkDotNet/Toolchains/DotNetCli/DotNetCliCommandExecutor.cs
@@ -96,6 +96,8 @@ internal static string GetDotNetSdkVersion()
         internal static ProcessStartInfo BuildStartInfo(string customDotNetCliPath, string workingDirectory, string arguments,
             IReadOnlyList<EnvironmentVariable> environmentVariables = null, bool redirectStandardInput = false)
         {
+            const string dotnetMultiLevelLookupEnvVarName = "DOTNET_MULTILEVEL_LOOKUP";
+
             var startInfo = new ProcessStartInfo
             {
                 FileName = customDotNetCliPath ?? "dotnet",
@@ -112,6 +114,9 @@ internal static ProcessStartInfo BuildStartInfo(string customDotNetCliPath, stri
                 foreach (var environmentVariable in environmentVariables)
                     startInfo.EnvironmentVariables[environmentVariable.Key] = environmentVariable.Value;
 
+            if (!string.IsNullOrEmpty(customDotNetCliPath) && (environmentVariables == null || !environmentVariables.Any(envVar => envVar.Key == dotnetMultiLevelLookupEnvVarName)))
+                startInfo.EnvironmentVariables[dotnetMultiLevelLookupEnvVarName] = "0";
+
             return startInfo;
         }
     }