diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b8f2c5dbe171aa98c6e1e6e1f3b73d025e0b36ca..8e62cd77dcff2026d3e680585941e74ff855aa58 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -20,13 +20,14 @@ build_osx_runtime:
   tags:
     - buildfarm
     - darwin
+  when: manual
   script:
   - git submodule update --init --recursive
   - chmod +x external/buildscripts/bee
   - cd external/buildscripts
   - ./bee
   - cd ../..
-  - perl external/buildscripts/build_runtime_osx.pl
+  - perl external/buildscripts/build_runtime_osx.pl --stevedorebuilddeps=1
   - mkdir -p incomingbuilds/osx-i386
   - cp -r builds/ incomingbuilds/osx-i386/
   artifacts:
@@ -42,13 +43,14 @@ build_osx_classlibs:
   tags:
     - buildfarm
     - darwin
+  when: manual
   script:
   - git submodule update --init --recursive
   - chmod +x external/buildscripts/bee
   - cd external/buildscripts
   - ./bee
   - cd ../..
-  - perl external/buildscripts/build_classlibs_osx.pl
+  - perl external/buildscripts/build_classlibs_osx.pl --stevedorebuilddeps=1
   - mkdir -p incomingbuilds/classlibs
   - cp -r ZippedClasslibs.tar.gz incomingbuilds/classlibs/
   - cd incomingbuilds/classlibs
@@ -68,13 +70,14 @@ build_android:
   tags:
     - buildfarm
     - darwin
+  when: manual
   script:
   - git submodule update --init --recursive
   - chmod +x external/buildscripts/bee
   - cd external/buildscripts
   - ./bee
   - cd ../..
-  - bash external/buildscripts/build_runtime_android.sh
+  - perl external/buildscripts/build_runtime_android.pl --stevedorebuilddeps=1
   - mkdir -p incomingbuilds/android/
   - cp -r builds/* incomingbuilds/android/
   artifacts:
@@ -90,12 +93,13 @@ build_win:
   tags:
   - buildfarm
   - windows
+  when: manual
   script:
   - git submodule update --init --recursive
   - cd external/buildscripts
   - ./bee.exe
   - cd ../..
-  - perl external/buildscripts/build_runtime_win64.pl
+  - perl external/buildscripts/build_runtime_win64.pl --stevedorebuilddeps=1
   - mkdir -p incomingbuilds/win64
   - cp -r builds/* incomingbuilds/win64/
   artifacts:
@@ -111,12 +115,13 @@ build_win_x86:
   tags:
   - buildfarm
   - windows
+  when: manual
   script:
   - git submodule update --init --recursive
   - cd external/buildscripts
   - ./bee.exe
   - cd ../..
-  - perl external/buildscripts/build_runtime_win.pl
+  - perl external/buildscripts/build_runtime_win.pl --stevedorebuilddeps=1
   - mkdir -p incomingbuilds/win32
   - cp -r builds/* incomingbuilds/win32/
   artifacts:
@@ -132,6 +137,7 @@ build_win_bare_minimum:
   tags:
   - buildfarm
   - windows
+  when: manual
   script:
   - git submodule update --init --recursive
   - cd external/buildscripts
@@ -153,13 +159,14 @@ build_linux_x64:
   tags:
   - buildfarm
   - linux
+  when: manual
   script:
   - git submodule update --init --recursive
   - chmod +x external/buildscripts/bee
   - cd external/buildscripts
   - ./bee
   - cd ../..
-  - perl external/buildscripts/build_runtime_linux.pl -build64=1
+  - perl external/buildscripts/build_runtime_linux.pl -build64=1 --stevedorebuilddeps=1
   - mkdir -p incomingbuilds/linux64
   - cp -r builds/* incomingbuilds/linux64/
   artifacts:
@@ -175,13 +182,14 @@ build_linux_x86:
   tags:
   - buildfarm
   - linux
+  when: manual
   script:
   - git submodule update --init --recursive
   - chmod +x external/buildscripts/bee
   - cd external/buildscripts
   - ./bee
   - cd ../..
-  - perl external/buildscripts/build_runtime_linux.pl
+  - perl external/buildscripts/build_runtime_linux.pl --stevedorebuilddeps=1
   - mkdir -p incomingbuilds/linux32
   - cp -r builds/* incomingbuilds/linux32/
   artifacts:
@@ -195,6 +203,7 @@ build_linux_x86:
 collate_builds:
   image: ubuntu:latest
   stage: collate
+  when: manual
   dependencies:
   - build_android
   - build_osx_runtime
diff --git a/external/buildscripts/Build.bee.cs b/external/buildscripts/Build.bee.cs
index 815c9d3443a60e46309338f671f126d65fb1b6e0..1cb8a1beeb3040f002eaaffc8da2e8f48e6db1c6 100644
--- a/external/buildscripts/Build.bee.cs
+++ b/external/buildscripts/Build.bee.cs
@@ -23,9 +23,6 @@ namespace BuildProgram
 			var buildScriptsRoot = monoRoot.Combine("external").Combine("buildscripts");
 			Console.WriteLine(">>> Build scripts directory: " + buildScriptsRoot);
 
-			var monoBuildDeps = monoRoot.Parent.Parent.Combine("mono-build-deps").Combine("build");
-			Console.WriteLine(">>> Mono build dependecies directory: " + monoBuildDeps);
-
 			var buildDependenciesConfigFile = buildScriptsRoot.Combine("buildDependencies.txt");
 			Console.WriteLine(">>> Mono build dependecies stevedore version config file: " + buildDependenciesConfigFile);
 
@@ -34,21 +31,14 @@ namespace BuildProgram
 
 			if (buildDependenciesConfigFile.Exists())
 			{
-				if (!monoBuildDeps.DirectoryExists())
-				{
-					Console.WriteLine(">>> " + monoBuildDeps + " does not exist. Creating it ...");
-					monoBuildDeps.CreateDirectory();
-				}
+				var artifactList = ParseBuildDependenciesConfigFile(buildDependenciesConfigFile.ToString());
 
-				var artifactNameIdFilesDictionary = ParseBuildDependenciesConfigFile(buildDependenciesConfigFile.ToString());
-
-				foreach (var item in artifactNameIdFilesDictionary)
+				foreach (var item in artifactList)
 				{
-					var artifactName = item.Key.Item1;
-					var artifactId = item.Key.Item2;
-					var repoName = item.Key.Item3;
-					var artifactFiles = item.Value;
-					DownloadAndCopyArtifact(artifactId, artifactName, repoName, artifactFiles, monoBuildDeps, stevedoreArtifactsDir);
+					var artifactName = item.Item1;
+					var artifactId = item.Item2;
+					var repoName = item.Item3;
+					DownloadArtifact(artifactId, artifactName, repoName);
 				}
 			}
 			else
@@ -57,46 +47,13 @@ namespace BuildProgram
 			}
 		}
 
-		private static void DownloadAndCopyArtifact(string artifactId, string artifactName, string repoName, IEnumerable<NPath> artifacts, NPath monoBuildDeps, NPath stevedoreArtifactsDir)
+		private static void DownloadArtifact(string artifactId, string artifactName, string repoName)
 		{
+			Console.WriteLine($">>> Registering artifact {artifactName}");
 			var artifact = new StevedoreArtifact(repoName, new ArtifactId(artifactId));
 			Backend.Current.Register(artifact);
-
-			var inputs = new List<NPath>();
-			var targetFiles = new List<NPath>();
-			foreach (var item in artifacts)
-			{
-				inputs.Add(stevedoreArtifactsDir.Combine(artifactName).Combine(item));
-				targetFiles.Add(monoBuildDeps.Combine(artifactName).Combine(item));
-			}
-
-			var targetDir = monoBuildDeps;
-			if (HostPlatform.IsWindows)
-			{
-				targetDir = monoBuildDeps.Combine(artifactName);
-			}
-
-			Backend.Current.AddAction(
-				actionName: "CopyArtifact",
-				targetFiles: targetFiles.ToArray(),
-				inputs: inputs.ToArray(),
-				executableStringFor: ExecutableStringForDirectoryCopy(stevedoreArtifactsDir.Combine(artifactName), targetDir),
-				commandLineArguments: new string[] { },
-				allowUnwrittenOutputFiles: true
-			);
 		}
 
-		private static void ExecuteBuildScript(NPath[] inputFiles, NPath buildScript, NPath buildRoot)
-		{
-			Backend.Current.AddAction(
-				actionName: "ExecuteBuildScript",
-				targetFiles: new[] { buildRoot},
-				inputs: inputFiles,
-				executableStringFor: $"perl {buildScript}",
-				commandLineArguments: new string[] { },
-				allowUnwrittenOutputFiles: true
-			);
-		}
 		private static NPath GetMonoRootDir()
 		{
 			var exePath = new NPath(System.Reflection.Assembly.GetEntryAssembly().Location);
@@ -109,13 +66,6 @@ namespace BuildProgram
 			return monoRoot;
 		}
 
-		private static string ExecutableStringForDirectoryCopy(NPath from, NPath target)
-		{
-			return HostPlatform.IsWindows
-				? $"xcopy {from.InQuotes(SlashMode.Native)} {target.InQuotes(SlashMode.Native)} /s /e /d /Y"
-				: $"cp -r -v {from.InQuotes(SlashMode.Native)} {target.InQuotes(SlashMode.Native)}";
-		}
-
 		private static bool IsRunningOnBuildMachine()
 		{
 			var buildMachine = Environment.GetEnvironmentVariable("UNITY_THISISABUILDMACHINE");
@@ -128,21 +78,18 @@ namespace BuildProgram
 			# name : <stevedore artifact name>
 			# id : <stevedore artifact id>
 			# repo : <stevedore repo name (can be testing/public/unityinternal)> 
-			# files : <folder and/or comma-separated list of files downloaded and unpacked> 
 
 			name: 7z
 			id: 7z/9df1e3b3b120_12ed325f6a47f0e5cebc247dbe9282a5da280d392cce4e6c9ed227d57ff1e2ff.7z
 			repo: testing
-			files : 7z
 
 			name: libgdiplus
 			id : libgdiplus/9df1e3b3b120_4cf7c08770db93922f54f38d2461b9122cddc898db58585864446e70c5ad3057.7z
 			repo: public
-			files : libgdiplus,lib2
 		*/
-		private static Dictionary<Tuple<string, string, string>, List<NPath>> ParseBuildDependenciesConfigFile(string buildDependenciesConfigFile)
+		private static List<Tuple<string, string, string>> ParseBuildDependenciesConfigFile(string buildDependenciesConfigFile)
 		{
-			var artifactNameIdFilesDictionary = new Dictionary<Tuple<string, string, string>, List<NPath>>();
+			var artifactNameIdFilesDictionary = new List<Tuple<string, string, string>>();
 
 			var fileStream = new FileStream(buildDependenciesConfigFile, FileMode.Open, FileAccess.Read);
 			using (var streamReader = new StreamReader(fileStream, Encoding.UTF8))
@@ -158,7 +105,6 @@ namespace BuildProgram
 							var name = "";
 							var id = "";
 							var repoName = "";
-							var files = "";
 
 							//read name
 							name = line.Split(':')[1].Trim();
@@ -175,25 +121,7 @@ namespace BuildProgram
 							else
 								throw new Exception($">>> Invalid {buildDependenciesConfigFile}, repo name does not exist");
 
-							//read comma separated folder/files list
-							if ((line = streamReader.ReadLine()) != null)
-								files = line.Split(':')[1].Trim();
-							else
-								throw new Exception($">>> Invalid {buildDependenciesConfigFile}, files do not exist");
-
-							var filesList = new List<NPath>();
-							if (!string.IsNullOrEmpty(files))
-							{
-								if (files.Contains(","))
-									files.Split(',').ForEach(f => { filesList.Add(new NPath(f.Trim())); });
-								else
-									filesList.Add(new NPath(files.Trim()));
-							}
-							else
-							{
-								throw new Exception($">>> Invalid {buildDependenciesConfigFile}");
-							}
-							artifactNameIdFilesDictionary.Add(new Tuple<string, string, string>(name, id, repoName), filesList);
+							artifactNameIdFilesDictionary.Add(new Tuple<string, string, string>(name, id, repoName));
 						}
 					}
 				}
diff --git a/external/buildscripts/build.pl b/external/buildscripts/build.pl
index 3c303fc1c6bb3ba82674fb650ec8235100ec2366..396fab0f230b7639b39f33905036fa985100ffee 100644
--- a/external/buildscripts/build.pl
+++ b/external/buildscripts/build.pl
@@ -64,6 +64,7 @@ my $iphoneSimulatorArch="";
 my $tizen=0;
 my $tizenEmulator=0;
 my $windowsSubsystemForLinux=0;
+my $stevedoreBuildDeps=0;
 
 # Handy troubleshooting/niche options
 my $skipMonoMake=0;
@@ -115,6 +116,7 @@ GetOptions(
 	'tizenemulator=i'=>\$tizenEmulator,
 	'windowssubsystemforlinux=i'=>\$windowsSubsystemForLinux,
 	'enablecachefile=i'=>\$enableCacheFile,
+	'stevedorebuilddeps=i'=>\$stevedoreBuildDeps,
 ) or die ("illegal cmdline options");
 
 print ">>> Mono checkout = $monoroot\n";
@@ -173,8 +175,16 @@ if ($buildDeps ne "" && not $forceDefaultBuildDeps)
 }
 else
 {
-	$externalBuildDeps = "$monoroot/../../mono-build-deps/build";
+	if($stevedoreBuildDeps)
+	{
+		$externalBuildDeps = "$monoroot/external/buildscripts/artifacts/Stevedore";
+	}
+	else
+	{
+		$externalBuildDeps = "$monoroot/../../mono-build-deps/build";
+	}	
 }
+print(">>> External build deps = $externalBuildDeps\n");
 
 # Only clean up the path if the directory exists, if it doesn't exist,
 # abs_path ends up returning an empty string
@@ -356,41 +366,63 @@ if ($build)
 		my $automakeDir = "$externalBuildDeps/automake-1-16-1/automake-$automakeVersion";
 		my $libtoolDir = "$externalBuildDeps/libtool-2-4-6/libtool-$libtoolVersion";
 		my $builtToolsDir = "$externalBuildDeps/built-tools";
-
+		
 		$ENV{PATH} = "$builtToolsDir/bin:$ENV{PATH}";
 
-		if (!(-d "$autoconfDir"))
+		if ($stevedoreBuildDeps)
+		{
+			$autoconfDir = "$externalBuildDeps/autoconf-src/autoconf-$autoconfVersion";
+		}
+		elsif (!(-d "$autoconfDir"))
 		{
+			print(">>> Extracting autoconf\n");
 			chdir("$externalBuildDeps/autoconf-2-69") eq 1 or die ("failed to chdir to external directory\n");
 			system("tar xzf autoconf-$autoconfVersion.tar.gz") eq 0  or die ("failed to extract autoconf\n");
-
+		}
+		if (-d "$autoconfDir")
+		{
+			print(">>> Installing autoconf from $autoconfDir\n");
 			chdir("$autoconfDir") eq 1 or die ("failed to chdir to autoconf directory\n");
 			system("./configure --prefix=$builtToolsDir") eq 0 or die ("failed to configure autoconf\n");
 			system("make") eq 0 or die ("failed to make autoconf\n");
 			system("make install") eq 0 or die ("failed to make install autoconf\n");
-
-			chdir("$monoroot") eq 1 or die ("failed to chdir to $monoroot\n");
+			chdir("$monoroot") eq 1 or die ("failed to chdir to $monoroot\n"); 
 		}
-
-		if (!(-d "$texinfoDir") and $windowsSubsystemForLinux)
+		
+		if ($stevedoreBuildDeps and $windowsSubsystemForLinux)
+		{
+			$texinfoDir = "$externalBuildDeps/texinfo-src/texinfo-$texinfoVersion";
+		}
+		elsif (!(-d "$texinfoDir") and $windowsSubsystemForLinux)
 		{
+			print(">>> Extracting texinfo\n");
 			chdir("$externalBuildDeps/texinfo-4-8") eq 1 or die ("failed to chdir to external directory\n");
 			system("tar xzf texinfo-$texinfoVersion.tar.gz") eq 0 or die ("failed to extract texinfo\n");
-
+		}
+		if (-d "$texinfoDir")
+		{
+			print(">>> Installing texinfo from $texinfoDir\n");
 			chdir($texinfoDir) eq 1 or die ("failed to chdir to texinfo directory\n");
 			system("./configure --prefix=$builtToolsDir") eq 0 or die ("failed to configure texinfo\n");
 			system("make") eq 0 or die ("failed to make texinfo\n");
 			system("make install") eq 0 or die ("failed to make install texinfo\n");
-
 			chdir("$monoroot") eq 1 or die ("failed to chdir to $monoroot\n");
 		}
 
-		if (!(-d "$automakeDir"))
+		if ($stevedoreBuildDeps)
 		{
-			my $automakeMakeFlags = "";
-			chdir("$externalBuildDeps/automake-1-16-1") eq 1 or die ("failed to chdir to external directory\n");
+			$automakeDir = "$externalBuildDeps/automake-src/automake-$automakeVersion";
+		}
+		elsif (!(-d "$automakeDir"))
+		{
+			print(">>> Extracting automake\n");
+			chdir("$externalBuildDeps/automake-1-16-1"") eq 1 or die ("failed to chdir to external directory\n");
 			system("tar xzf automake-$automakeVersion.tar.gz") eq 0  or die ("failed to extract automake\n");
-
+		}
+		if (-d "$automakeDir")
+		{
+			my $automakeMakeFlags = "";
+			print(">>> Installing automake from $automakeDir\n");
 			chdir("$automakeDir") eq 1 or die ("failed to chdir to automake directory\n");
 			if($windowsSubsystemForLinux)
 			{
@@ -404,16 +436,23 @@ if ($build)
 			chdir("$monoroot") eq 1 or die ("failed to chdir to $monoroot\n");
 		}
 
-		if (!(-d "$libtoolDir"))
+		if ($stevedoreBuildDeps)
+		{
+			$libtoolDir = "$externalBuildDeps/libtool-src/libtool-$libtoolVersion";
+		}
+		elsif (!(-d "$libtoolDir"))
 		{
+			print(">>> Extracting libtool\n");
 			chdir("$externalBuildDeps/libtool-2-4-6") eq 1 or die ("failed to chdir to external directory\n");
 			system("tar xzf libtool-$libtoolVersion.tar.gz") eq 0  or die ("failed to extract libtool\n");
-
+		}
+		if (-d "$libtoolDir")
+		{
+			print(">>> Installing libtool from $libtoolDir\n");
 			chdir("$libtoolDir") eq 1 or die ("failed to chdir to libtool directory\n");
 			system("./configure --prefix=$builtToolsDir") eq 0 or die ("failed to configure libtool\n");
 			system("make") eq 0 or die ("failed to make libtool\n");
 			system("make install") eq 0 or die ("failed to make install libtool\n");
-
 			chdir("$monoroot") eq 1 or die ("failed to chdir to $monoroot\n");
 		}
 
diff --git a/external/buildscripts/buildDependencies.txt b/external/buildscripts/buildDependencies.txt
index 6ce18ea3feb31fc817c59ebcb2fc05153faee353..939dc6f38ac6ad0446af202b0415f023acbda0ba 100644
--- a/external/buildscripts/buildDependencies.txt
+++ b/external/buildscripts/buildDependencies.txt
@@ -2,74 +2,59 @@
 # name : <stevedore artifact name>
 # id : <stevedore artifact id>
 # repo : <stevedore repo name (can be testing/public/unityinternal)> 
-# files : <folder and/or comma-separated list of files downloaded and unpacked>
 
 name : 7z 
 id: 7z/9df1e3b3b120_12ed325f6a47f0e5cebc247dbe9282a5da280d392cce4e6c9ed227d57ff1e2ff.7z
 repo: testing
-files : 7z
 
 name : libgdiplus 
 id : libgdiplus/9df1e3b3b120_4cf7c08770db93922f54f38d2461b9122cddc898db58585864446e70c5ad3057.7z
 repo: testing
-files : libgdiplus
 
 name : MacBuildEnvironment 
 id : MacBuildEnvironment/9df1e3b3b120_2fc8e616a2e5dfb7907fc42d9576b427e692223c266dc3bc305de4bf03714e30.7z
 repo: testing
-files : MacBuildEnvironment
 
 name : mono 
 id : mono/9df1e3b3b120_f81c172b91f45b2e045f4ba52d5f65cc54041da1527f2c854bf9db3a99495007.7z
 repo: testing
-files : mono
 
 name : MonoBleedingEdge 
 id : MonoBleedingEdge/9df1e3b3b120_ab6d2f131e6bd4fe2aacafb0f683e8fa4e1ccba35552b6fe89bf359b6ee16215.7z 
 repo: testing
-files : MonoBleedingEdge
 
 name : reference-assemblies 
 id : reference-assemblies/9df1e3b3b120_bbb4750c6bf0a1784bec7d7c04b8ef5881f31f6212136e014694f3864a388886.7z
 repo: testing
-files : reference-assemblies
 
 name : linux-sdk-20170609 
 id : linux-sdk-20170609/9df1e3b3b120_9a3a0847d5b3767579e908b5a9ce050936617b1b9275a79a8b71bb3229998957.7z
 repo: testing
-files : linux-sdk-20170609
 
-name : libtool-2-4-6 
-id : libtool-2-4-6/9df1e3b3b120_50f88211570edd89e1bf344d33e416a2eb04519f54940ae72d954a5ee0b8a69c.7z
-repo: testing
-files : libtool-2-4-6
+name : libtool-src 
+id : libtool-src/2.4.6_49a0ed204b3b24572e044400cd05513f611bcca6ced0d0816a57ac3b17376257.7z
+repo: public
 
-name : texinfo-4-8 
-id : texinfo-4-8/9df1e3b3b120_f0f8445fc0e8b8d6f52b8be4c3ff09fa59c30ff4424fe8c9bea951b9893540c9.7z
-repo: testing
-files : texinfo-4-8
+name : texinfo-src 
+id : texinfo-src/4.8_975b9657ebef8a4fe3897047ca450b757a0a956b05399dc813f63e84829bac6a.7z
+repo: public
 
-name : automake-1-15 
-id : automake-1-15/9df1e3b3b120_815e3ebf8d8bd08aa7f6ac1bbdff50d0379febba2049a5520247f7f4a1a6b3a3.7z
-repo: testing
-files : automake-1-15
+name : automake-src
+id : automake-src/1.15_de1f60706336df404881d3c789d8e04f0bc50e6bf577d78cae438b089b02d8ed.7z
+repo: public
 
-name : autoconf-2-69 
-id : autoconf-2-69/9df1e3b3b120_08915db7451aeafc86abedc46ef88243a1179ebaef4829ac75e5de8bfc80d0d2.7z
-repo: testing
-files : autoconf-2-69
+name : autoconf-src 
+id : autoconf-src/2.69_0e4ba7a0363c68ad08a7d138b228596aecdaea68e1d8b8eefc645e6ac8fc85c7.7z
+repo: public
 
 name : android-ndk-r16b-darwin 
 id : android-ndk-r16b-darwin/9df1e3b3b120_c7cda5a221dd72799b7e618597b3f8766df7183d386becb2785631c2d3ac0d75.7z
 repo: testing
-files : android-ndk-r16b-darwin
 
 name : android-ndk-r16b-linux 
 id : android-ndk-r16b-linux/9df1e3b3b120_fbabd18208d82cbc810266e8b566bb0ea4e1e438de38d450a92deaa3e23757b6.7z
 repo: testing
-files : android-ndk-r16b-linux
 
 name : android-ndk-r16b-windows 
 id : android-ndk-r16b-windows/9df1e3b3b120_403e0d58eabae03f0d9e8d1d2cea2dbf1d14c380c3d1c7eeb6e8c60ffc15e1b8.7z
-repo: testing
-files : android-ndk-r16b-windows
\ No newline at end of file
+repo: testing
\ No newline at end of file
diff --git a/external/buildscripts/build_classlibs_osx.pl b/external/buildscripts/build_classlibs_osx.pl
index fa96cc74cf32deff85662a67d872e998a91fa687..30d695655281fdef3564d2c613939501c685f80d 100644
--- a/external/buildscripts/build_classlibs_osx.pl
+++ b/external/buildscripts/build_classlibs_osx.pl
@@ -12,6 +12,7 @@ my $build = 1;
 my $clean = 1;
 my $mcsOnly = 0;
 my $skipMonoMake = 0;
+my $stevedoreBuildDeps=0;
 
 # Handy troubleshooting/niche options
 
@@ -24,6 +25,7 @@ GetOptions(
    "mcsOnly=i"=>\$mcsOnly,
    'skipmonomake=i'=>\$skipMonoMake,
    'shortprefix=i'=>\$shortPrefix,
+   'stevedorebuilddeps=i'=>\$stevedoreBuildDeps,
 ) or die ("illegal cmdline options");
 
 system(
@@ -37,4 +39,5 @@ system(
 	"--artifactscommon=1",
 	"--buildusandboo=1",
 	"--forcedefaultbuilddeps=1",
+	"--stevedorebuilddeps=$stevedoreBuildDeps",
 	"--shortprefix=$shortPrefix") eq 0 or die ("Failed building mono\n");
diff --git a/external/buildscripts/build_runtime_android.pl b/external/buildscripts/build_runtime_android.pl
index baf687dc903431a619a8802bc2f17841d5ad576e..f11767bf4b294bdd0d88fb4a8ba4cbdbc3ec4f7f 100644
--- a/external/buildscripts/build_runtime_android.pl
+++ b/external/buildscripts/build_runtime_android.pl
@@ -11,22 +11,24 @@ my $buildScriptsRoot = "$monoroot/external/buildscripts";
 my $androidArch = "";
 my $clean = 1;
 my $windowsSubsystemForLinux = 0;
+my $stevedoreBuildDeps = 0;
 
 GetOptions(
    "androidarch=s"=>\$androidArch,
    "clean=i"=>\$clean,
    "windowssubsystemforlinux=i"=>\$windowsSubsystemForLinux,
+   "stevedorebuilddeps=i"=>\$stevedoreBuildDeps,
 ) or die ("illegal cmdline options");
 
 # By default, build runtime for all the variants we need.  But allow something to specify an individual variation to build
 if ($androidArch eq "")
 {
-	system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=1", "--androidarch=armv5", "--forcedefaultbuilddeps=1", "--windowssubsystemforlinux=$windowsSubsystemForLinux") eq 0 or die ("Failed building mono for armv5\n");
-	system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=1", "--androidarch=armv6_vfp", "--forcedefaultbuilddeps=1", "--windowssubsystemforlinux=$windowsSubsystemForLinux") eq 0 or die ("Failed building mono for armv6_vfp\n");
-	system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=1", "--androidarch=armv7a", "--forcedefaultbuilddeps=1", "--windowssubsystemforlinux=$windowsSubsystemForLinux") eq 0 or die ("Failed building mono for armv7a\n");
-	system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=1", "--androidarch=x86", "--forcedefaultbuilddeps=1", "--windowssubsystemforlinux=$windowsSubsystemForLinux") eq 0 or die ("Failed building mono for x86\n");
+	system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=1", "--androidarch=armv5", "--forcedefaultbuilddeps=1", "--windowssubsystemforlinux=$windowsSubsystemForLinux", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono for armv5\n");
+	system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=1", "--androidarch=armv6_vfp", "--forcedefaultbuilddeps=1", "--windowssubsystemforlinux=$windowsSubsystemForLinux", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono for armv6_vfp\n");
+	system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=1", "--androidarch=armv7a", "--forcedefaultbuilddeps=1", "--windowssubsystemforlinux=$windowsSubsystemForLinux", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono for armv7a\n");
+	system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=1", "--androidarch=x86", "--forcedefaultbuilddeps=1", "--windowssubsystemforlinux=$windowsSubsystemForLinux", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono for x86\n");
 }
 else
 {
-	system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=$clean", "--artifact=1", "--arch32=1", "--androidarch=$androidArch", "--forcedefaultbuilddeps=1", "--windowssubsystemforlinux=$windowsSubsystemForLinux") eq 0 or die ("Failed building mono for $androidArch\n");
+	system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=$clean", "--artifact=1", "--arch32=1", "--androidarch=$androidArch", "--forcedefaultbuilddeps=1", "--windowssubsystemforlinux=$windowsSubsystemForLinux", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono for $androidArch\n");
 }
diff --git a/external/buildscripts/build_runtime_linux.pl b/external/buildscripts/build_runtime_linux.pl
index 836b7407d10aa88d3d2c032042b5a0f35deece96..a85d48cf7364a6506fab1cc630b2e936d6187923 100644
--- a/external/buildscripts/build_runtime_linux.pl
+++ b/external/buildscripts/build_runtime_linux.pl
@@ -8,10 +8,12 @@ my $monoroot = File::Spec->rel2abs(dirname(__FILE__) . "/../..");
 my $monoroot = abs_path($monoroot);
 my $buildScriptsRoot = "$monoroot/external/buildscripts";
 
+my $stevedoreBuildDeps = 0;
 my $build64 = 0;
 
 GetOptions(
    "build64=i"=>\$build64,
+   "stevedorebuilddeps=i"=>\$stevedoreBuildDeps,
 ) or die ("illegal cmdline options");
 
 my $arch32 = 1;
@@ -20,4 +22,4 @@ if ($build64)
 	$arch32 = 0;
 }
 
-system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--test=1", "--artifact=1", "--arch32=$arch32", "--classlibtests=0", "--forcedefaultbuilddeps=1") eq 0 or die ("Failed building mono\n");
+system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--test=1", "--artifact=1", "--arch32=$arch32", "--classlibtests=0", "--forcedefaultbuilddeps=1", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono\n");
diff --git a/external/buildscripts/build_runtime_osx.pl b/external/buildscripts/build_runtime_osx.pl
index 82b9d5f64b3b2b266437e2aea325112ea361b0a9..5f2c3ae7f31e6124e3b353fc2a0dae3bd4570300 100644
--- a/external/buildscripts/build_runtime_osx.pl
+++ b/external/buildscripts/build_runtime_osx.pl
@@ -8,4 +8,10 @@ my $monoroot = File::Spec->rel2abs(dirname(__FILE__) . "/../..");
 my $monoroot = abs_path($monoroot);
 my $buildScriptsRoot = "$monoroot/external/buildscripts";
 
-system("perl", "$buildScriptsRoot/build_all_osx.pl", "--build=1", "--artifact=1", "--test=1", "--forcedefaultbuilddeps=1") eq 0 or die ("Failed building mono\n");
+my $stevedoreBuildDeps=0;
+
+GetOptions(
+   'stevedorebuilddeps=i'=>\$stevedoreBuildDeps,
+) or die ("illegal cmdline options");
+
+system("perl", "$buildScriptsRoot/build_all_osx.pl", "--build=1", "--artifact=1", "--test=1", "--forcedefaultbuilddeps=1", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono\n");
diff --git a/external/buildscripts/build_runtime_win.pl b/external/buildscripts/build_runtime_win.pl
index 9022ed3f5413527c247429382fd0196923dd44db..7a3e8a41930fe24319dccc9c74049230a4e8e889 100644
--- a/external/buildscripts/build_runtime_win.pl
+++ b/external/buildscripts/build_runtime_win.pl
@@ -7,8 +7,13 @@ use File::Path;
 my $monoroot = File::Spec->rel2abs(dirname(__FILE__) . "/../..");
 my $monoroot = abs_path($monoroot);
 my $buildScriptsRoot = "$monoroot/external/buildscripts";
+my $stevedoreBuildDeps = 0;
+
+GetOptions(
+   "stevedorebuilddeps=i"=>\$stevedoreBuildDeps,
+) or die ("illegal cmdline options");
 
 # Note : Ideally we can switch back to this build approach once the random cygwin hangs on the build machines are sorted out
-#system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--test=1", "--artifact=1", "--arch32=1", "--classlibtests=0", "--forcedefaultbuilddeps=1") eq 0 or die ("Failed building mono\n");
+#system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--test=1", "--artifact=1", "--arch32=1", "--classlibtests=0", "--forcedefaultbuilddeps=1", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono\n");
 
-system("perl", "$buildScriptsRoot/build_win_no_cygwin.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=1", "--forcedefaultbuilddeps=1") eq 0 or die ("Failed building mono\n");
+system("perl", "$buildScriptsRoot/build_win_no_cygwin.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=1", "--forcedefaultbuilddeps=1", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono\n");
diff --git a/external/buildscripts/build_runtime_win64.pl b/external/buildscripts/build_runtime_win64.pl
index 24bf9821282d9e1a0ace0d889580f550ac1a18a7..1de06035212b0f3fc17af76d0318cd09b8621f4e 100644
--- a/external/buildscripts/build_runtime_win64.pl
+++ b/external/buildscripts/build_runtime_win64.pl
@@ -8,7 +8,13 @@ my $monoroot = File::Spec->rel2abs(dirname(__FILE__) . "/../..");
 my $monoroot = abs_path($monoroot);
 my $buildScriptsRoot = "$monoroot/external/buildscripts";
 
+my $stevedoreBuildDeps = 0;
+
+GetOptions(
+   "stevedorebuilddeps=i"=>\$stevedoreBuildDeps,
+) or die ("illegal cmdline options");
+
 # Note : Ideally we can switch back to this build approach once the random cygwin hangs on the build machines are sorted out
-#system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--test=1", "--artifact=1", "--classlibtests=0", "--forcedefaultbuilddeps=1") eq 0 or die ("Failed building mono\n");
+#system("perl", "$buildScriptsRoot/build.pl", "--build=1", "--clean=1", "--test=1", "--artifact=1", "--classlibtests=0", "--forcedefaultbuilddeps=1", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono\n");
 
-system("perl", "$buildScriptsRoot/build_win_no_cygwin.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=0", "--forcedefaultbuilddeps=1") eq 0 or die ("Failed building mono\n");
+system("perl", "$buildScriptsRoot/build_win_no_cygwin.pl", "--build=1", "--clean=1", "--artifact=1", "--arch32=0", "--forcedefaultbuilddeps=1", "--stevedorebuilddeps=$stevedoreBuildDeps") eq 0 or die ("Failed building mono\n");
diff --git a/external/buildscripts/build_win_no_cygwin.pl b/external/buildscripts/build_win_no_cygwin.pl
index 3249c10c959b24694578d2144475df84256a1898..be2eef11e3f7c3b2730dc592d7a93e3886c03dda 100644
--- a/external/buildscripts/build_win_no_cygwin.pl
+++ b/external/buildscripts/build_win_no_cygwin.pl
@@ -37,6 +37,7 @@ my $winPerl = "perl";
 my $winMonoRoot = $monoroot;
 my $msBuildVersion = "14.0";
 my $buildDeps = "";
+my $stevedoreBuildDeps=0;
 
 print(">>> Build All Args = @ARGV\n");
 
@@ -53,6 +54,7 @@ GetOptions(
 	'checkoutonthefly=i'=>\$checkoutOnTheFly,
 	'builddeps=s'=>\$buildDeps,
 	'forcedefaultbuilddeps=i'=>\$forceDefaultBuildDeps,
+	'stevedorebuilddeps=i'=>\$stevedoreBuildDeps,
 ) or die ("illegal cmdline options");
 
 my $monoRevision = `git rev-parse HEAD`;
@@ -72,8 +74,16 @@ if ($buildDeps ne "" && not $forceDefaultBuildDeps)
 }
 else
 {
-	$externalBuildDeps = "$monoroot/../../mono-build-deps/build";
+	if($stevedoreBuildDeps)
+	{
+		$externalBuildDeps = "$monoroot/external/buildscripts/artifacts/Stevedore";
+	}
+	else
+	{
+		$externalBuildDeps = "$monoroot/../../mono-build-deps/build";
+	}
 }
+print(">>> External build deps = $externalBuildDeps\n");
 
 my $existingExternalMonoRoot = "$externalBuildDeps\\mono";
 my $existingExternalMono = "$existingExternalMonoRoot\\win";