reorder versions hash to get the versions for each compiler rather than all

src/perl/scripts2/check_compilers.pl

@@ -12,7 +12,6 @@ $|=1;
 
 my $args = "@ARGV";
 my $vb = ($args=~/-v/) ? 1 : 0;
-my %versions;
 my @compilers = ('gcc','clang');
 my $compiler_regexp = join('|',@compilers);
 
@@ -27,7 +26,7 @@ foreach my $compiler (@compilers)
  
     foreach my $executable (@executables)
     {
-        build($executable);
+#        build($executable);
     }
 }
 
@@ -44,13 +43,14 @@ sub find_executables
         /$compiler-?\d*(\.\d+)*$/
     }split(/\n/,`bash -c "compgen -ca $compiler"`);
     chomp @executables;
-
+    
     # sort by string length
     @executables = sort {
         length($a) <=> length($b)
     } @executables;
     
     # get versions : we want a unique list by version
+    my %versions;
     foreach my $executable (@executables)
     {
         my $v = version_of($executable);