gnu/dist/gmake/tests/scripts/options/dash-n

   1 #                                                                    -*-perl-*-
   2 $description = "Test the -n option.\n";
   3
   4 $details = "Try various uses of -n and ensure they all give the correct results.\n";
   5
   6 open(MAKEFILE, "> $makefile");
   7
   8 # The Contents of the MAKEFILE ...
   9
  10 print MAKEFILE <<'EOMAKE';
  11
  12 final: intermediate ; echo >> $@
  13 intermediate: orig ; echo >> $@
  14
  15 EOMAKE
  16
  17 close(MAKEFILE);
  18
  19 &touch('orig');
  20
  21 # TEST 0
  22
  23 &run_make_with_options($makefile, "", &get_logfile);
  24 $answer = "echo >> intermediate\necho >> final\n";
  25 &compare_output($answer, &get_logfile(1));
  26
  27 # TEST 1
  28
  29 &run_make_with_options($makefile, "-Worig -n", &get_logfile);
  30 $answer = "echo >> intermediate\necho >> final\n";
  31 &compare_output($answer, &get_logfile(1));
  32
  33 unlink('orig', 'intermediate', 'final');
  34
  35 # We consider the actual updated timestamp of targets with all
  36 # recursive commands, even with -n.
  37
  38 $makefile2 = &get_tmpfile;
  39
  40 open(MAKEFILE, "> $makefile2");
  41
  42 print MAKEFILE <<'EOF';
  43 .SUFFIXES:
  44 BAR =     # nothing
  45 FOO = +$(BAR)
  46 a: b; echo > $@
  47 b: c; $(FOO)
  48 EOF
  49
  50 close(MAKEFILE);
  51
  52 &utouch(-20, 'b');
  53 &utouch(-10, 'a');
  54 &touch('c');
  55
  56 # TEST 2
  57
  58 &run_make_with_options($makefile2, "", &get_logfile);
  59 $answer = "$make_name: `a' is up to date.\n";
  60 &compare_output($answer, &get_logfile(1));
  61
  62 # TEST 3
  63
  64 &run_make_with_options($makefile2, "-n", &get_logfile);
  65 $answer = "$make_name: `a' is up to date.\n";
  66 &compare_output($answer, &get_logfile(1));
  67
  68 unlink('a', 'b', 'c');
  69
  70 1;