t/yacc-basic.sh

   1 #! /bin/sh
   2 # Copyright (C) 2010-2024 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 Yacc support (without yacc-generated headers).
  18 # Keep in sync with sister test 'yacc-cxx.sh'.
  19
  20 required='cc yacc'
  21 . test-init.sh
  22
  23 cat >> configure.ac << 'END'
  24 AC_PROG_CC
  25 AC_PROG_YACC
  26 AC_OUTPUT
  27 END
  28
  29 cat > Makefile.am << 'END'
  30 AM_LFLAGS = --never-interactive
  31
  32 bin_PROGRAMS = foo bar
  33 foo_SOURCES = parse.y foo.c
  34 bar_SOURCES = $(foo_SOURCES)
  35 bar_YFLAGS = -v
  36
  37 .PHONY: echo-distcom
  38 echo-distcom:
  39         @echo ' ' $(DIST_COMMON) ' '
  40 END
  41
  42 cat > parse.y << 'END'
  43 %{
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 int yylex () { return getchar (); }
  47 void yyerror (const char *s) {}
  48 %}
  49 %%
  50 a : 'a' { exit(0); };
  51 END
  52
  53 cat > foo.c << 'END'
  54 extern int yyparse(void);
  55 int main () { yyparse (); return 1; }
  56 END
  57
  58 $ACLOCAL
  59 $AUTOCONF
  60 $AUTOMAKE -a
  61
  62 ./configure
  63 $MAKE
  64 ls -l
  65 # The Yacc-derived C sources must be created, and not removed once
  66 # compiled (i.e., not treated like "intermediate files" in the GNU
  67 # make sense).
  68 test -f parse.c
  69 test -f bar-parse.c
  70 # Check that per-object flags are honored.
  71 test -f bar-parse.output
  72
  73 if ! cross_compiling; then
  74   echo a | ./foo
  75   echo b | ./foo && exit 1
  76   echo a | ./bar
  77   echo b | ./bar && exit 1
  78   : For shells with busted 'set -e'.
  79 fi
  80
  81 # The Yacc-derived C sources must be shipped.
  82 $MAKE echo-distcom
  83 $MAKE -s echo-distcom | grep '[ /]parse\.c '
  84 $MAKE -s echo-distcom | grep '[ /]bar-parse\.c '
  85 $MAKE distdir
  86 ls -l $distdir
  87 test -f $distdir/parse.c
  88 test -f $distdir/bar-parse.c
  89
  90 # Sanity check on distribution.
  91 # Note that, for this to succeed, bar-parse.output must either not
  92 # be distributed, or properly cleaned by automake-generated rules.
  93 # We don't want to set the exact semantics yet, but want to ensure
  94 # they are are consistent.
  95 yl_distcheck
  96
  97 # Make sure that the Yacc-derived C sources are erased by
  98 # maintainer-clean, and not by distclean.
  99 test -f parse.c
 100 test -f bar-parse.c
 101 $MAKE distclean
 102 ls -l
 103 test -f parse.c
 104 test -f bar-parse.c
 105 ./configure # We must re-create 'Makefile'.
 106 $MAKE maintainer-clean
 107 ls -l
 108 test ! -e parse.c
 109 test ! -e bar-parse.c
 110
 111 :