kc3-lang/automake/t/warnopts.sh

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• Hash : 3562e384
  Author :
  Date : 2017-09-16T13:03:36
  

  Prefer https: URLs
  
  In Gnulib, Emacs, etc. we are changing ftp: and http: URLs to use
  https:, to discourage man-in-the-middle attacks when downloading
  software. The attached patch propagates these changes upstream to
  Automake.  This patch does not affect files that Automake is
  downstream of, which I'll patch separately.
  
  Althouth the resources are not secret, plain HTTP is vulnerable to
  malicious routers that tamper with responses from GNU servers,
  and this sort of thing is all too common when people in some other
  countries browse US-based websites. See, for example:
  
  Aceto G, Botta A, Pescapé A, Awan MF, Ahmad T, Qaisar
  S. Analyzing internet censorship in Pakistan. RTSI
  2016. https://dx.doi.org/10.1109/RTSI.2016.7740626
  
  HTTPS is not a complete solution here, but it can be a significant
  help. The GNU project regularly serves up code to users, so we should
  take some care here.
  

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• t/warnopts.sh

• #! /bin/sh
  # Copyright (C) 2002-2017 Free Software Foundation, Inc.
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU General Public License as published by
  # the Free Software Foundation; either version 2, or (at your option)
  # any later version.
  #
  # This program is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU General Public License for more details.
  #
  # You should have received a copy of the GNU General Public License
  # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  
  # Make sure that we can enable or disable warnings on a per-file basis.
  
  . test-init.sh
  
  cat >>configure.ac <<END
  AC_CONFIG_FILES([sub/Makefile])
  AC_OUTPUT
  END
  
  mkdir sub
  
  # These two Makefile contain the same errors, but have different
  # warnings disabled.
  
  cat >Makefile.am <<END
  AUTOMAKE_OPTIONS = -Wno-obsolete
  INCLUDES = -Ifoo
  foo_SOURCES = unused
  SUBDIRS = sub
  END
  
  cat >sub/Makefile.am <<END
  AUTOMAKE_OPTIONS = -Wno-syntax
  INCLUDES = -Ifoo
  foo_SOURCES = unused
  END
  
  $ACLOCAL
  AUTOMAKE_fails
  # The expected diagnostic is
  #   Makefile.am:3: warning: variable 'foo_SOURCES' is defined but no program or
  #                           library has 'foo' as canonical name (possible typo)
  #   sub/Makefile.am:2: warning: 'INCLUDES' is the old name for 'AM_CPPFLAGS'
  grep '^Makefile.am:.*foo_SOURCES' stderr
  grep '^sub/Makefile.am:.*INCLUDES' stderr
  grep '^sub/Makefile.am:.*foo_SOURCES' stderr && exit 1
  grep '^Makefile.am:.*INCLUDES' stderr && exit 1
  # Only three lines of warnings.
  test $(grep -v 'warnings are treated as errors' stderr | wc -l) -eq 3
  
  # On fast machines the autom4te.cache created during the above run of
  # $AUTOMAKE is likely to have the same time stamp as the configure.ac
  # created below; thus causing traces for the old configure.ac to be
  # used.  We could do '$sleep', but it's faster to erase the
  # directory.  (Erase autom4te*.cache, not autom4te.cache, because some
  # bogus installations of Autoconf use a versioned cache).
  rm -rf autom4te*.cache
  
  # If we add a global -Wnone, all warnings should disappear.
  cat >configure.ac <<END
  AC_INIT([warnopts], [1.0])
  AM_INIT_AUTOMAKE([-Wnone])
  AC_CONFIG_FILES([Makefile sub/Makefile])
  AC_OUTPUT
  END
  $ACLOCAL
  $AUTOMAKE
  
  :
  

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