t/yacc-d-basic.sh

   1 #! /bin/sh
   2 # Copyright (C) 2011-2018 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 # Tests Yacc support with yacc-generated headers
  18 # (i.e., '-d' in *YFLAGS).
  19 # Keep in sync with sister test 'yacc-d-cxx.sh'.
  20
  21 required='cc yacc'
  22 . test-init.sh
  23
  24 cat >> configure.ac << 'END'
  25 AC_PROG_CC
  26 AC_PROG_YACC
  27 AC_CONFIG_FILES([foo/Makefile bar/Makefile baz/Makefile])
  28 AC_OUTPUT
  29 END
  30
  31 cat > Makefile.am <<'END'
  32 SUBDIRS = foo bar baz
  33 END
  34
  35 mkdir foo bar baz
  36
  37 cat > foo/Makefile.am <<'END'
  38 bin_PROGRAMS = zardoz
  39 zardoz_SOURCES = parse.y main.c
  40 .PHONY: echo-distcom
  41 echo-distcom:
  42         @echo ' ' $(DIST_COMMON) ' '
  43 END
  44 cp foo/Makefile.am bar/Makefile.am
  45 cp foo/Makefile.am baz/Makefile.am
  46
  47 cat > foo/parse.y << 'END'
  48 %{
  49 #include "parse.h"
  50 int yylex () { return 0; }
  51 void yyerror (char *s) {}
  52 %}
  53 %%
  54 x : 'x' {};
  55 %%
  56 END
  57 # Using ylwrap, we actually generate y.tab.[ch].  Unfortunately, we
  58 # forgot to rename #include "y.tab.h" into #include "parse.h" during
  59 # the conversion from y.tab.c to parse.c.  This was OK when Bison was
  60 # not issuing such an #include (up to 2.6).
  61 #
  62 # To make sure that we perform this conversion even with version of
  63 # Bison that do not generate this include, in bar/parse.y, use y.tab.h
  64 # instead of parse.h, and check the ylwrap does replace "y.tab.h" with
  65 # "parse.h".
  66 sed -e 's/parse\.h/y.tab.h/' <foo/parse.y >bar/parse.y
  67
  68 cat > foo/main.c << 'END'
  69 #include "parse.h"
  70 int main ()
  71 {
  72   return yyparse ();
  73 }
  74 END
  75 cp foo/main.c bar/main.c
  76
  77 # Even the generated header file is renamed when target-specific YFLAGS
  78 # are used.  This might not be the best behavior, but it has been in
  79 # place for quite a long time, so just go along with it for now.
  80 sed 's/"parse\.h"/"zardoz-parse.h"/' foo/parse.y > baz/parse.y
  81 sed 's/"parse\.h"/"zardoz-parse.h"/' foo/main.c > baz/main.c
  82
  83 $ACLOCAL
  84 $AUTOCONF
  85
  86 $AUTOMAKE -a
  87 $FGREP parse.h foo/Makefile.in bar/Makefile.in baz/Makefile.in && exit 1
  88
  89 cat >> foo/Makefile.am <<END
  90 BUILT_SOURCES = parse.h
  91 YFLAGS=\
  92 -d
  93 END
  94 $AUTOMAKE -Wno-gnu foo/Makefile
  95
  96 sed 's/EOL$//' >> bar/Makefile.am <<END
  97 AM_YFLAGS${tab}=  -d EOL
  98 BUILT_SOURCES = parse.h
  99 END
 100 $AUTOMAKE bar/Makefile
 101
 102 cat >> baz/Makefile.am <<END
 103 BUILT_SOURCES = zardoz-parse.h
 104 zardoz_YFLAGS =-d${tab}
 105 END
 106 $AUTOMAKE baz/Makefile
 107
 108 ./configure
 109
 110 $MAKE
 111
 112 generated="
 113   foo/parse.c
 114   foo/parse.h
 115   bar/parse.c
 116   bar/parse.h
 117   baz/zardoz-parse.c
 118   baz/zardoz-parse.h
 119 "
 120
 121 for i in $generated; do
 122   test -f $i
 123 done
 124
 125 # There must remain no obsolete header guard.
 126 grep Y_TAB_H $generated && exit 1
 127
 128 # The generated C source and header files must be shipped.
 129 for dir in foo bar; do
 130   cd $dir
 131   $MAKE echo-distcom
 132   $MAKE -s echo-distcom | grep '[ /]parse.c '
 133   $MAKE -s echo-distcom | grep '[ /]parse.h '
 134   cd ..
 135 done
 136 cd baz
 137 $MAKE echo-distcom
 138 $MAKE -s echo-distcom | grep '[ /]zardoz-parse.c '
 139 $MAKE -s echo-distcom | grep '[ /]zardoz-parse.h '
 140 cd ..
 141
 142 $MAKE distdir
 143 ls -l $distdir
 144 for i in $generated; do
 145   test -f $distdir/$i
 146 done
 147
 148 # Sanity check the distribution.
 149 yl_distcheck
 150
 151 # While we are at it, make sure that 'parse.c' and 'parse.h' are erased
 152 # by maintainer-clean, and not by distclean.
 153 $MAKE distclean
 154 for i in $generated; do
 155   test -f $i
 156 done
 157 ./configure # Re-create 'Makefile'.
 158 $MAKE maintainer-clean
 159 for i in $generated; do
 160   test ! -e $i
 161 done
 162
 163 :