t/comments-escaped-in-var.sh

   1 #! /bin/sh
   2 # Copyright (C) 2022-2024 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 # Make sure Automake preserves escaped comments in the output.
  18
  19 . test-init.sh
  20
  21 cat >> configure.ac <<'END'
  22 AC_OUTPUT
  23 END
  24
  25 cat > Makefile.am << 'END'
  26 # This value should be preserved.
  27 var = -DVAL='"\#xxx\#"'   # this should be stripped
  28 var += -DX=1  # this should be kept
  29 END
  30
  31 $ACLOCAL
  32
  33 # This should fail due to -Werror, as in:
  34 #   automake-1.16: warnings are treated as errors
  35 #   Makefile.am:2: warning: escaping \# comment markers is not portable
  36 AUTOMAKE_fails
  37 grep 'escaping.*comment markers.*portable' stderr
  38
  39 # This should pass though.
  40 $AUTOMAKE -Wno-portability
  41
  42 # For debugging.
  43 grep ^var Makefile.in
  44
  45 # The full flag should be retained.
  46 grep '^var.*\\#xxx\\#.*DX=1' Makefile.in
  47
  48 # Only the 2nd comment should be retained.
  49 grep '^var.*stripped' Makefile.in && exit 1 || :
  50 grep '^var.*should be kept' Makefile.in