scripts/firstversions.awk

   1 # Script to preprocess Versions.all lists based on "earliest version"
   2 # specifications in the shlib-versions file.
   3
   4 NF > 2 && $2 == ":" {
   5   for (i = 0; i <= NF - 3; ++i)
   6     firstversion[$1, i] = $(3 + i);
   7   idx[$1] = 0;
   8   next;
   9 }
  10
  11 NF == 2 && $2 == "{" { thislib = $1; print; next }
  12
  13 $1 == "}" {
  14   if (firstversion[thislib, idx[thislib]]) {
  15     # We haven't seen the stated version, but have produced
  16     # others pointing to it, so we synthesize it now.
  17     printf "  %s\n", firstversion[thislib, idx[thislib]];
  18     idx[thislib]++;
  19   }
  20   print;
  21   next;
  22 }
  23
  24 {
  25   v = firstversion[thislib, idx[thislib]];
  26
  27   if (! v)
  28     print;
  29   else if ($1 == v) {
  30     print;
  31     firstversion[thislib, idx[thislib]] = 0;
  32     idx[thislib]++;
  33   }
  34   else
  35     print $1, "=", v;
  36 }