Upgrade automake to 1.16.1 (cherry-pick unity-master merge #1153)

Author: ashwinimurt

external/buildscripts/build.pl

@@ -369,11 +369,11 @@
 		print ">>> Building autoconf, texinfo, automake, and libtool if needed...\n";
 		my $autoconfVersion = "2.69";
 		my $texinfoVersion = "4.8";
-		my $automakeVersion = "1.15";
+		my $automakeVersion = "1.16.1";
 		my $libtoolVersion = "2.4.6";
 		my $autoconfDir = "$externalBuildDeps/autoconf-2-69/autoconf-$autoconfVersion";
 		my $texinfoDir = "$externalBuildDeps/texinfo-4-8/texinfo-$texinfoVersion";
-		my $automakeDir = "$externalBuildDeps/automake-1-15/automake-$automakeVersion";
+		my $automakeDir = "$externalBuildDeps/automake-1-16-1/automake-$automakeVersion";
 		my $libtoolDir = "$externalBuildDeps/libtool-2-4-6/libtool-$libtoolVersion";
 		my $builtToolsDir = "$externalBuildDeps/built-tools";
 
@@ -426,7 +426,7 @@
 		elsif (!(-d "$automakeDir"))
 		{
 			print(">>> Extracting automake\n");
-			chdir("$externalBuildDeps/automake-1-15") eq 1 or die ("failed to chdir to external directory\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")

external/buildscripts/buildDependencies.txt

@@ -40,8 +40,8 @@ id : texinfo-src/4.8_975b9657ebef8a4fe3897047ca450b757a0a956b05399dc813f63e84829
 repo: public
 
 name : automake-src
-id : automake-src/1.15_de1f60706336df404881d3c789d8e04f0bc50e6bf577d78cae438b089b02d8ed.7z
-repo: public
+id : automake-src/1.16.1_d281b950e26265f55f0a63188a8c6388e638b354b7ed80d186690119cbc4f953.7z
+repo: testing
 
 name : autoconf-src 
 id : autoconf-src/2.69_0e4ba7a0363c68ad08a7d138b228596aecdaea68e1d8b8eefc645e6ac8fc85c7.7z