t/lex3.sh

   1 #! /bin/sh
   2 # Copyright (C) 1999-2024 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 # Basic semantic checks on Lex support.
  18 # Test associated with PR 19.
  19 # From Matthew D. Langston.
  20
  21 required='cc lex'
  22 . test-init.sh
  23
  24 cat >> configure.ac << 'END'
  25 AC_PROG_CC
  26 AM_PROG_LEX
  27 AC_OUTPUT
  28 END
  29
  30 cat > Makefile.am << 'END'
  31 AM_LFLAGS = --never-interactive
  32
  33 noinst_PROGRAMS = foo
  34 foo_SOURCES = foo.l
  35 END
  36
  37 cat > foo.l << 'END'
  38 %%
  39 "GOOD"   return EOF;
  40 .
  41 %%
  42
  43 int main (void)
  44 {
  45   /* We don't use a 'while' loop here (like a real lexer would do)
  46      to avoid possible hangs. */
  47   if (yylex () == EOF)
  48     return 0;
  49   else
  50     return 1;
  51 }
  52
  53 /* Avoid possible link errors. */
  54 int yywrap (void)
  55 {
  56   return 1;
  57 }
  58 END
  59
  60 $ACLOCAL
  61 $AUTOCONF
  62 $AUTOMAKE -a
  63
  64 ./configure
  65
  66 # Program should build and run.
  67 $MAKE
  68 if ! cross_compiling; then
  69   echo GOOD | ./foo
  70   echo BAD | ./foo && exit 1
  71   : For shells with busted 'set -e'.
  72 fi
  73
  74 # The generated file 'foo.c' must be shipped.
  75 $MAKE distdir
  76 test -f $distdir/foo.c
  77
  78 # Sanity check on distribution.
  79 yl_distcheck
  80
  81 # While we are at it, make sure that foo.c is erased by
  82 # maintainer-clean, and not by distclean.
  83 test -f foo.c
  84 $MAKE distclean
  85 test -f foo.c
  86 ./configure # Re-create 'Makefile'.
  87 $MAKE maintainer-clean
  88 test ! -e foo.c
  89
  90 :