t/yacc-grepping.sh

   1 #! /bin/sh
   2 # Copyright (C) 1996-2024 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 # Some grep-based checks on yacc support:
  18 #
  19 #  - Make sure intermediate .c file is built from yacc source.
  20 #    Report from Thomas Morgan.
  21 #
  22 #  - Make sure intermediate .h file is not generated nor removed
  23 #    if (AM_)?YFLAGS do not contain '-d'.
  24 #    Requested by Jim Meyering.
  25
  26 . test-init.sh
  27
  28 cat >> configure.ac << 'END'
  29 AC_PROG_CC
  30 AC_PROG_YACC
  31 END
  32
  33 # Run it here once and for all, since we are not going to modify
  34 # configure.ac anymore.
  35 $ACLOCAL
  36
  37 cat > Makefile.am <<'END'
  38 AM_LFLAGS = --never-interactive
  39
  40 bin_PROGRAMS = zardoz
  41 zardoz_SOURCES = zardoz.y
  42 END
  43
  44 # Don't redefine several times the same variable.
  45 cp Makefile.am Makefile.src
  46
  47 $AUTOMAKE -a
  48 $FGREP 'zardoz.c' Makefile.in
  49 # If zardoz.h IS mentioned, fail.
  50 $FGREP 'zardoz.h' Makefile.in && exit 1
  51
  52 cp Makefile.src Makefile.am
  53 echo 'AM_YFLAGS = -d' >> Makefile.am
  54 $AUTOMAKE
  55 $FGREP 'zardoz.c' Makefile.in
  56 # If zardoz.h is NOT mentioned, fail.
  57 $FGREP 'zardoz.h' Makefile.in
  58
  59 cp Makefile.src Makefile.am
  60 echo 'AM_YFLAGS = ' >> Makefile.am
  61 $AUTOMAKE
  62 $FGREP 'zardoz.c' Makefile.in
  63 # If zardoz.h IS mentioned, fail.
  64 $FGREP 'zardoz.h' Makefile.in && exit 1
  65
  66 cp Makefile.src Makefile.am
  67 echo 'YFLAGS = -d' >> Makefile.am
  68 # YFLAGS is a user variable.
  69 AUTOMAKE_fails
  70 grep 'YFLAGS.* user variable' stderr
  71 grep 'AM_YFLAGS.* instead' stderr
  72 $AUTOMAKE -Wno-gnu
  73 # If zardoz.h is NOT mentioned, fail.
  74 $FGREP 'zardoz.h' Makefile.in
  75
  76 cp Makefile.src Makefile.am
  77 echo 'YFLAGS = ' >> Makefile.am
  78 $AUTOMAKE -Wno-gnu
  79 # If zardoz.h IS mentioned, fail.
  80 $FGREP 'zardoz.h' Makefile.in && exit 1
  81
  82 :