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# awk script for soversions.i -> gnu/lib-names.h; see Makeconfig.

$1 != "DEFAULT" { multi = 1 }

#
{
  lib = $2;
  version = $3;
  if ($3 ~ /[^0-9]/) {
    soname = $3;
    extra = $3;
    sub(/\.so.*$/, "", extra);
  }
  else {
    soname = lib ".so." $3;
    extra = "";
  }
  soname = "\"" soname "\"";
  lib = toupper(lib);
  extra = toupper(extra);
  gsub(/-/, "_", lib);
  gsub(/-/, "_", extra);
  macros[$1 FS lib "_SO"] = soname;
  if (extra)
    macros[$1 FS extra "_SO"] = soname;
}

END {
  print "/* This file is automatically generated.";
  print "   It defines macros to allow user program to find the shared";
  print "   library files which come as part of GNU libc.  */";
  print "#ifndef __GNU_LIB_NAMES_H";
  print "#define __GNU_LIB_NAMES_H	1";
  print "";

  pfx = multi ? "# define " : "#define ";
  for (elt in macros) {
    split(elt, x);
    line = sprintf("%-40s%s", pfx x[2], macros[elt]);
    if (x[1] in lines)
      lines[x[1]] = lines[x[1]] "\n" line;
    else
      lines[x[1]] = line;
  }

  default_lines = lines["DEFAULT"];
  delete lines["DEFAULT"];
  if (multi) {
    print "#include <bits/wordsize.h>\n";
    pfx = "#if";
    for (kind in lines) {
      l = lines[kind];
      sub(/WORDSIZE/, "", kind);
      print pfx, "__WORDSIZE", "==", kind;
      cmd = "LC_ALL=C sort"; print l | cmd; close(cmd);
      pfx = "#elif";
    }
    print "#else";
    cmd = "LC_ALL=C sort"; print default_lines | cmd; close(cmd);
    print "#endif";
  }
  else {
    cmd = "LC_ALL=C sort"; print default_lines | cmd; close(cmd);
  }

  print "";
  print "#endif	/* gnu/lib-names.h */"
}