1BEGIN { n = 1 }
2/^#/ { print }
3{
4          if (NF > 0 && substr($0, 1, 1) != "#") {
5                    files[n++] = $0;
6          }
7          next;
8}
9END {
10          split(COMPATDIRS, dirs);
11          for (d in dirs) {
12                    for (f = 1; f < n; f++) {
13                              x=files[f]; sub("@ARCH_SUBDIR@", dirs[d], x);
14                              print x;
15                    }
16          }
17}
18