t/mmodely.sh

   1 #! /bin/sh
   2 # Copyright (C) 2004-2012 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=cc
  22 . ./defs || exit 1
  23
  24 cat >> configure.ac << 'END'
  25 AM_MAINTAINER_MODE
  26 AC_PROG_CC
  27 AM_PROG_LEX
  28 AC_PROG_YACC
  29 AC_OUTPUT
  30 END
  31
  32 cat > Makefile.am <<'END'
  33 YACC = false
  34 LEX = false
  35 bin_PROGRAMS = zardoz
  36 zardoz_SOURCES = zardoz.y joe.l
  37 LDADD = @LEXLIB@
  38 END
  39
  40 # The point of this test is that it is not dependent on a working lex
  41 # or yacc.
  42 cat > joe.c <<EOF
  43 int joe (int arg)
  44 {
  45     return arg * 2;
  46 }
  47 EOF
  48 # On systems which link in libraries non-lazily and whose linkers
  49 # complain about unresolved symbols by default, such as Solaris, an
  50 # yylex function needs to be defined to avoid an error due to an
  51 # unresolved symbol.
  52 cat > zardoz.c <<EOF
  53 int joe (int arg);
  54 int yylex (void)
  55 {
  56     return 0;
  57 }
  58 int main (int argc, char **argv)
  59 {
  60     return joe (argc);
  61 }
  62 EOF
  63
  64 # Ensure a later timestamp for our Lex & Yacc sources.
  65 $sleep
  66 : > joe.l
  67 : > zardoz.y
  68
  69 $ACLOCAL
  70 $AUTOCONF
  71 $AUTOMAKE -a
  72
  73 ./configure
  74 $MAKE
  75
  76 cat >myyacc.sh <<'END'
  77 #! /bin/sh
  78 echo "$@" >y.tab.c
  79 END
  80 cat >mylex.sh <<'END'
  81 echo "$@" >lex.yy.c
  82 END
  83 chmod +x myyacc.sh mylex.sh
  84 PATH=$(pwd)$PATH_SEPARATOR$PATH; export PATH
  85
  86 # "make maintainer-clean; ./configure; make" should always work,
  87 # per GNU Standard.
  88 $MAKE maintainer-clean
  89 ./configure
  90 YACC="myyacc.sh" LEX="mylex.sh" \
  91    LEX_OUTPUT_ROOT='lex.yy' $MAKE -e zardoz.c joe.c
  92 $FGREP zardoz.y zardoz.c
  93 $FGREP joe.l joe.c
  94
  95 :