t/yflags-force-override.sh

   1 #! /bin/sh
   2 # Copyright (C) 2011-2024 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 # Check that automake can cope with a definition of the $(YFLAGS) variable
  18 # in Makefile.am (even if that is extremely bad practice, because that
  19 # variable is user-reserved).
  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 AM_LFLAGS = --never-interactive
  32
  33 bin_PROGRAMS = foo
  34 foo_SOURCES = foo.y
  35 # Don't do this in a real-life Makefile.am!
  36 YFLAGS = -d -v
  37 END
  38
  39 cat > foo.y << 'END'
  40 %{
  41 int yylex () { return 0; }
  42 void yyerror (const char *s) {}
  43 int main () { return 0; }
  44 %}
  45 %%
  46 foobar : 'f' 'o' 'o' 'b' 'a' 'r' {};
  47 END
  48
  49 $ACLOCAL
  50 $AUTOMAKE -a -Wno-gnu
  51
  52 $EGREP '(foo|YFLAGS)' Makefile.in # For debugging.
  53 grep '^foo\.h *:' Makefile.in
  54
  55 $AUTOCONF
  56 ./configure
  57
  58 $MAKE
  59
  60 test -f foo.c
  61 test -f foo.h
  62 test -f foo.output
  63
  64 :