tests/mmodely.test

   1 #! /bin/sh
   2 # Copyright (C) 2004, 2006, 2007, 2009  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 <http://www.gnu.org/licenses/>.
  16
  17 # Verify that intermediate files are only built from Yacc and Lex
  18 # sources in maintainer mode.
  19 # From Derek R. Price.
  20
  21 required=gcc
  22 . ./defs || Exit 1
  23
  24 set -e
  25
  26 cat >> configure.in << 'END'
  27 AM_MAINTAINER_MODE
  28 AC_PROG_CC
  29 AM_PROG_LEX
  30 AC_PROG_YACC
  31 AC_OUTPUT
  32 END
  33
  34 cat > Makefile.am <<'END'
  35 YACC = false
  36 LEX = false
  37 bin_PROGRAMS = zardoz
  38 zardoz_SOURCES = zardoz.y joe.l
  39 LDADD = @LEXLIB@
  40 END
  41
  42 # The point of this test is that it is not dependent on a working lex or yacc.
  43 cat > joe.c <<EOF
  44 int joe (int arg)
  45 {
  46     return arg * 2;
  47 }
  48 EOF
  49 # On systems which link in libraries non-lazily and whose linkers
  50 # complain about unresolved symbols by default, such as Solaris, an
  51 # yylex function needs to be defined to avoid an error due to an
  52 # unresolved symbol.
  53 cat > zardoz.c <<EOF
  54 int joe (int arg);
  55 int yylex (void)
  56 {
  57     return 0;
  58 }
  59 int main (int argc, char **argv)
  60 {
  61     return joe (argc);
  62 }
  63 EOF
  64
  65 # Ensure a later timestamp for our Lex & Yacc sources.
  66 $sleep
  67 : > joe.l
  68 : > zardoz.y
  69
  70 $ACLOCAL
  71 $AUTOCONF
  72 $AUTOMAKE -a
  73
  74 ./configure
  75 $MAKE
  76
  77 cat >myyacc.sh <<'END'
  78 #! /bin/sh
  79 echo "$@" >y.tab.c
  80 END
  81 cat >mylex.sh <<'END'
  82 echo "$@" >lex.yy.c
  83 END
  84 chmod +x myyacc.sh mylex.sh
  85 PATH="`pwd`:$PATH"
  86
  87 # make maintainer-clean; ./configure; make should always work,
  88 # per GNU Standard.
  89 $MAKE maintainer-clean
  90 ./configure
  91 YACC="myyacc.sh" LEX="mylex.sh" \
  92    LEX_OUTPUT_ROOT='lex.yy' $MAKE -e zardoz.c joe.c
  93 grep zardoz.y zardoz.c
  94 grep joe.l joe.c