t/lex-pr204.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 # Related to PR 204.
  18 # C sources derived from nodist_ lex sources should not be distributed.
  19 # See also related test 'lex-nodist.sh'.
  20 # The tests 'yacc-nodist.sh' and 'yacc-pr204.sh' does similar checks
  21 # for yacc-generated .c and .h files.
  22
  23 required='cc lex'
  24 . test-init.sh
  25
  26 cat >> configure.ac <<'EOF'
  27 AM_MAINTAINER_MODE
  28 AC_PROG_CC
  29 dnl We use AC_PROG_LEX deliberately.
  30 dnl Sister 'lex-nodist.sh' should use 'AM_PROG_LEX' instead.
  31 AC_PROG_LEX
  32 AC_OUTPUT
  33 EOF
  34
  35 # The LEXER2 intermediate variable is there to make sure Automake
  36 # matches 'nodist_' against the right variable name...
  37 cat > Makefile.am << 'EOF'
  38 AM_LFLAGS = --never-interactive
  39
  40 EXTRA_PROGRAMS = foo
  41 LEXER2 = lexer2.l
  42 nodist_foo_SOURCES = lexer.l $(LEXER2)
  43
  44 distdirtest: distdir
  45         test ! -f $(distdir)/lexer.c
  46         test ! -f $(distdir)/lexer.l
  47         test ! -f $(distdir)/lexer.h
  48         test ! -f $(distdir)/lexer2.c
  49         test ! -f $(distdir)/lexer2.l
  50         test ! -f $(distdir)/lexer2.h
  51 EOF
  52
  53 cat > lexer.l << 'END'
  54 %%
  55 "GOOD"   return EOF;
  56 .
  57 %%
  58 int main (void)
  59 {
  60   return yylex ();
  61 }
  62 END
  63
  64 cp lexer.l lexer2.l
  65
  66 $ACLOCAL
  67 $AUTOCONF
  68 $AUTOMAKE -a
  69
  70 ./configure
  71 $MAKE distdirtest
  72
  73 # Make sure lexer.c and lexer2.c are still targets.
  74 $MAKE lexer.c lexer2.c
  75 test -f lexer.c
  76 test -f lexer2.c
  77
  78 # Ensure the rebuild rule works despite AM_MAINTAINER_MODE, because
  79 # it's a nodist_ lexer.
  80 $sleep
  81 touch lexer.l lexer2.l
  82 $sleep
  83 $MAKE lexer.c lexer2.c
  84 is_newest lexer.c lexer.l
  85 is_newest lexer2.c lexer2.l
  86
  87 :