t/yacc-d-basic.sh

   1 #! /bin/sh
   2 # Copyright (C) 2011-2024 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 # 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 AM_LFLAGS = --never-interactive
  39
  40 bin_PROGRAMS = zardoz
  41 zardoz_SOURCES = parse.y main.c
  42 .PHONY: echo-distcom
  43 echo-distcom:
  44         @echo ' ' $(DIST_COMMON) ' '
  45 END
  46 cp foo/Makefile.am bar/Makefile.am
  47 cp foo/Makefile.am baz/Makefile.am
  48
  49 cat > foo/parse.y << 'END'
  50 %{
  51 #include "parse.h"
  52 int yylex () { return 0; }
  53 void yyerror (const char *s) {}
  54 %}
  55 %%
  56 x : 'x' {};
  57 %%
  58 END
  59 # Using ylwrap, we actually generate y.tab.[ch].  Unfortunately, we
  60 # forgot to rename #include "y.tab.h" into #include "parse.h" during
  61 # the conversion from y.tab.c to parse.c.  This was OK when Bison was
  62 # not issuing such an #include (up to 2.6).
  63 #
  64 # To make sure that we perform this conversion even with version of
  65 # Bison that do not generate this include, in bar/parse.y, use y.tab.h
  66 # instead of parse.h, and check the ylwrap does replace "y.tab.h" with
  67 # "parse.h".
  68 sed -e 's/parse\.h/y.tab.h/' <foo/parse.y >bar/parse.y
  69
  70 cat > foo/main.c << 'END'
  71 #include "parse.h"
  72 int main ()
  73 {
  74   return yyparse ();
  75 }
  76 END
  77 cp foo/main.c bar/main.c
  78
  79 # Even the generated header file is renamed when target-specific YFLAGS
  80 # are used.  This might not be the best behavior, but it has been in
  81 # place for quite a long time, so just go along with it for now.
  82 sed 's/"parse\.h"/"zardoz-parse.h"/' foo/parse.y > baz/parse.y
  83 sed 's/"parse\.h"/"zardoz-parse.h"/' foo/main.c > baz/main.c
  84
  85 $ACLOCAL
  86 $AUTOCONF
  87
  88 $AUTOMAKE -a
  89 $FGREP parse.h foo/Makefile.in bar/Makefile.in baz/Makefile.in && exit 1
  90
  91 cat >> foo/Makefile.am <<END
  92 BUILT_SOURCES = parse.h
  93 YFLAGS=\
  94 -d
  95 END
  96 $AUTOMAKE -Wno-gnu foo/Makefile
  97
  98 sed 's/EOL$//' >> bar/Makefile.am <<END
  99 AM_YFLAGS${tab}=  -d EOL
 100 BUILT_SOURCES = parse.h
 101 END
 102 $AUTOMAKE bar/Makefile
 103
 104 cat >> baz/Makefile.am <<END
 105 BUILT_SOURCES = zardoz-parse.h
 106 zardoz_YFLAGS =-d${tab}
 107 END
 108 $AUTOMAKE baz/Makefile
 109
 110 ./configure
 111
 112 $MAKE
 113
 114 generated="
 115   foo/parse.c
 116   foo/parse.h
 117   bar/parse.c
 118   bar/parse.h
 119   baz/zardoz-parse.c
 120   baz/zardoz-parse.h
 121 "
 122
 123 for i in $generated; do
 124   test -f $i
 125 done
 126
 127 # There must remain no obsolete header guard.
 128 grep Y_TAB_H $generated && exit 1
 129
 130 # The generated C source and header files must be shipped.
 131 for dir in foo bar; do
 132   cd $dir
 133   $MAKE echo-distcom
 134   $MAKE -s echo-distcom | grep '[ /]parse.c '
 135   $MAKE -s echo-distcom | grep '[ /]parse.h '
 136   cd ..
 137 done
 138 cd baz
 139 $MAKE echo-distcom
 140 $MAKE -s echo-distcom | grep '[ /]zardoz-parse.c '
 141 $MAKE -s echo-distcom | grep '[ /]zardoz-parse.h '
 142 cd ..
 143
 144 $MAKE distdir
 145 ls -l $distdir
 146 for i in $generated; do
 147   test -f $distdir/$i
 148 done
 149
 150 # Sanity check the distribution.
 151 yl_distcheck
 152
 153 # While we are at it, make sure that 'parse.c' and 'parse.h' are erased
 154 # by maintainer-clean, and not by distclean.
 155 $MAKE distclean
 156 for i in $generated; do
 157   test -f $i
 158 done
 159 ./configure # Re-create 'Makefile'.
 160 $MAKE maintainer-clean
 161 for i in $generated; do
 162   test ! -e $i
 163 done
 164
 165 :