t/lex3.sh

   1 #! /bin/sh
   2 # Copyright (C) 1999-2018 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 noinst_PROGRAMS = foo
  32 foo_SOURCES = foo.l
  33 END
  34
  35 cat > foo.l << 'END'
  36 %{
  37 #define YY_NO_UNISTD_H 1
  38 %}
  39 %%
  40 "GOOD"   return EOF;
  41 .
  42 %%
  43
  44 int main (void)
  45 {
  46   /* We don't use a 'while' loop here (like a real lexer would do)
  47      to avoid possible hangs. */
  48   if (yylex () == EOF)
  49     return 0;
  50   else
  51     return 1;
  52 }
  53
  54 /* Avoid possible link errors. */
  55 int yywrap (void)
  56 {
  57   return 1;
  58 }
  59 END
  60
  61 $ACLOCAL
  62 $AUTOCONF
  63 $AUTOMAKE -a
  64
  65 ./configure
  66
  67 # Program should build and run.
  68 $MAKE
  69 if ! cross_compiling; then
  70   echo GOOD | ./foo
  71   echo BAD | ./foo && exit 1
  72   : For shells with busted 'set -e'.
  73 fi
  74
  75 # The generated file 'foo.c' must be shipped.
  76 $MAKE distdir
  77 test -f $distdir/foo.c
  78
  79 # Sanity check on distribution.
  80 yl_distcheck
  81
  82 # While we are at it, make sure that foo.c is erased by
  83 # maintainer-clean, and not by distclean.
  84 test -f foo.c
  85 $MAKE distclean
  86 test -f foo.c
  87 ./configure # Re-create 'Makefile'.
  88 $MAKE maintainer-clean
  89 test ! -e foo.c
  90
  91 :