t/cond35.sh

   1 #!/bin/sh
   2 # Copyright (C) 2004-2018 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 # Check rules output for parser defined conditionally.
  18 # Report from Roman Fietze.
  19
  20 required='cc lex yacc'
  21 . test-init.sh
  22
  23 cat >>configure.ac <<'EOF'
  24 AM_CONDITIONAL([CASE_A], [test -z "$case_B"])
  25 AC_PROG_CC
  26 AM_PROG_LEX
  27 AC_PROG_YACC
  28 AC_OUTPUT
  29 EOF
  30
  31 cat > Makefile.am <<'EOF'
  32 AM_YFLAGS               =       -d
  33
  34 BUILT_SOURCES           =       tparse.h
  35
  36 if CASE_A
  37 bin_PROGRAMS            =       ta
  38 ta_SOURCES              =       ta.c tparse.h tscan.l tparse.y
  39 ta_LDADD                =       $(LEXLIB)
  40 else
  41 bin_PROGRAMS            =       tb
  42 tb_SOURCES              =       tb.c tparse.h tscan.l tparse.y
  43 tb_LDADD                =       $(LEXLIB)
  44 endif
  45
  46
  47 test-ta:
  48         test -f ta$(EXEEXT)
  49 test-tb:
  50         test -f tb$(EXEEXT)
  51 EOF
  52
  53 $ACLOCAL
  54 $AUTOCONF
  55 $AUTOMAKE --add-missing
  56
  57 $FGREP 'tparse.h' Makefile.in # For debugging.
  58 test $($FGREP -c 'tparse.h:' Makefile.in) -eq 1
  59
  60 cat > tscan.l << 'END'
  61 %{
  62 #define YY_NO_UNISTD_H 1
  63 %}
  64 %%
  65 "END"   return EOF;
  66 %%
  67 /* Avoid possible link errors. */
  68 int yywrap (void)
  69 {
  70   return 1;
  71 }
  72 END
  73
  74 cat > tparse.y << 'END'
  75 %{
  76 void yyerror (char *s) {}
  77 %}
  78 %token EOF
  79 %%
  80 foobar : 'f' 'o' 'o' 'b' 'a' 'r' EOF {};
  81 END
  82
  83 cat > ta.c << 'END'
  84 int main (void)
  85 {
  86   return 0;
  87 }
  88 END
  89
  90 cp ta.c tb.c
  91
  92 ./configure
  93 $MAKE
  94 $MAKE test-ta
  95
  96 ./configure case_B=yes
  97 $MAKE
  98 $MAKE test-tb
  99
 100 :