t/yflags-force-conditional.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 # Check that the user can force automake to use *_YFLAGS variables
  18 # which have conditional content.
  19
  20 . test-init.sh
  21
  22 cat >> configure.ac <<'END'
  23 AC_SUBST([CC], [false])
  24 AC_PROG_YACC
  25 AM_CONDITIONAL([COND], [test x"$cond" = x"yes"])
  26 AC_OUTPUT
  27 END
  28
  29 mkdir bin
  30 cat > bin/fake-yacc <<'END'
  31 #!/bin/sh
  32 echo "/* $* */" > y.tab.c
  33 echo 'extern int dummy;' >> y.tab.c
  34 END
  35 chmod a+x bin/fake-yacc
  36 PATH=$(pwd)/bin$PATH_SEPARATOR$PATH; export PATH
  37 YACC=fake-yacc; export YACC
  38
  39 cat > Makefile.am <<'END'
  40 AUTOMAKE_OPTIONS = no-dependencies
  41 AM_LFLAGS = --never-interactive
  42
  43 bin_PROGRAMS = foo bar
  44 foo_SOURCES = foo.y main.c
  45 bar_SOURCES = $(foo_SOURCES)
  46 bar_YFLAGS = $(bar_yflags2)
  47 if COND
  48 AM_YFLAGS = __am_cond_yes__
  49 bar_YFLAGS += __bar_cond_yes__
  50 else !COND
  51 AM_YFLAGS = __am_cond_no__
  52 bar_yflags2 = __bar_cond_no__
  53 endif !COND
  54 END
  55
  56 : > foo.y
  57
  58 $ACLOCAL
  59 $AUTOCONF
  60 $AUTOMAKE -a -Wno-unsupported
  61
  62 $EGREP '(YFLAGS|yflags|am__append)' Makefile.in # For debugging.
  63
  64 ./configure cond=yes
  65 $MAKE foo.c bar-foo.c
  66
  67 cat foo.c
  68 cat bar-foo.c
  69
  70 $FGREP ' __am_cond_yes__ ' foo.c
  71 $FGREP ' __bar_cond_yes__ ' bar-foo.c
  72 $FGREP 'cond_no' foo.c bar-foo.c && exit 1
  73
  74 $MAKE maintainer-clean
  75 ls -l
  76
  77 ./configure cond=no
  78 $MAKE foo.c bar-foo.c
  79
  80 cat foo.c
  81 cat bar-foo.c
  82
  83 $FGREP ' __am_cond_no__ ' foo.c
  84 $FGREP ' __bar_cond_no__ ' bar-foo.c
  85 $FGREP 'cond_yes' foo.c bar-foo.c && exit 1
  86
  87 :