pluseq11.sh 1.3 KB

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  1. #!/bin/sh
  2. # Copyright (C) 2010-2017 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 <http://www.gnu.org/licenses/>.
  16. # Check for bug in variable concatenation with '+=': an extra backslash
  17. # is erroneously retained in the final value.
  18. # See also sister test 'pluseq11b.sh'.
  19. . test-init.sh
  20. cat >>configure.ac <<'END'
  21. AC_OUTPUT
  22. END
  23. cat > Makefile.am <<'END'
  24. ## Use more line continuation to ensure we are robust and can (hopefully)
  25. ## cope any number of them, and not just one
  26. FOO = \
  27. \
  28. \
  29. bar
  30. ## Both these two variable additions are required to trigger the bug.
  31. FOO +=
  32. FOO += baz
  33. .PHONY: test
  34. test:
  35. case '$(FOO)' in *\\*) exit 1;; *) exit 0;; esac
  36. END
  37. $ACLOCAL
  38. $AUTOMAKE
  39. grep '^ *FOO *=.*\\.' Makefile.in && exit 1
  40. $AUTOCONF
  41. ./configure
  42. $MAKE test
  43. :