t/suffix9.sh

   1 #! /bin/sh
   2 # Copyright (C) 2002-2017 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 # Make sure that Automake choose the shorter route between suffixes
  18 # (related to PR/37)
  19
  20 . test-init.sh
  21
  22 cat >>configure.ac << 'END'
  23 AC_PROG_CC
  24 END
  25
  26 $ACLOCAL
  27
  28 #  x_ -> y -> c -> o
  29 #   \________/
  30 #
  31 # Automake should follow the bottom route: x_ -> c -> o because
  32 # it is shorter.
  33 #
  34 # It should not take the "-> y ->" route.  We use 'y' here so that
  35 # then Automake will complains that YACC is not defined and the test will
  36 # fail when this happens.
  37
  38 cat >Makefile.am << 'END'
  39 bin_PROGRAMS = foo
  40 foo_SOURCES = foo.x_
  41
  42 .x_.y:
  43         cp $< $@
  44 .x_.c:
  45         cp $< $@
  46 END
  47
  48 $AUTOMAKE -a
  49
  50 # Idem with the rules the another order.
  51
  52 cat >Makefile.am << 'END'
  53 bin_PROGRAMS = foo
  54 foo_SOURCES = foo.x_
  55
  56 .x_.c:
  57         cp $< $@
  58 .x_.y:
  59         cp $< $@
  60 END
  61
  62 $AUTOMAKE -a
  63
  64 :