t/yacc-depend2.sh

   1 #! /bin/sh
   2 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  16
  17 # Make sure depcomp does not needlessly update headers and objects
  18 # for yacc rules.  This test still fails with FreeBSD make (but passes
  19 # with NetBSD make).
  20
  21 required='cc yacc'
  22 . test-init.sh
  23
  24 cat >> configure.ac << 'END'
  25 AC_PROG_CC
  26 AC_PROG_YACC
  27 AC_OUTPUT
  28 END
  29
  30 cat > Makefile.am << 'END'
  31 bin_PROGRAMS = foo
  32 AM_YFLAGS = -d
  33 foo_SOURCES = foo.y main.c
  34 BUILT_SOURCES = foo.h
  35 .PHONY: test-time-unchanged test-time-changed
  36 test-time-unchanged:
  37         is_newest foo.y foo.h main.$(OBJEXT)
  38 test-time-changed:
  39         is_newest main.$(OBJEXT) foo.y foo.h
  40 END
  41
  42 cat > foo.y << 'END'
  43 %{
  44 int yylex () { return 0; }
  45 void yyerror (char *s) { return; }
  46 %}
  47 %token TOKEN
  48 %%
  49 foobar : 'f' 'o' 'o' 'b' 'a' 'r' {};
  50 END
  51
  52
  53 cat > main.c << 'END'
  54 #include "foo.h"
  55 int main(void)
  56 {
  57   return yyparse ();
  58 }
  59 END
  60
  61 $ACLOCAL
  62 $AUTOCONF
  63 $AUTOMAKE -a
  64
  65 # Try to enable dependency tracking if possible, even if that means
  66 # using slow dependency extractors.
  67 ./configure --enable-dependency-tracking
  68 $MAKE
  69 ls -l # For debugging.
  70
  71 $sleep
  72 touch foo.y
  73 $MAKE
  74 $MAKE test-time-unchanged
  75 $sleep
  76 sed 's/TOKEN/TEKON/g' foo.y > t
  77 mv -f t foo.y
  78 $MAKE
  79 $MAKE test-time-changed
  80
  81 :