kc3-lang/automake/t/posixsubst-sources.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/posixsubst-sources.sh

• #! /bin/sh
  # Copyright (C) 2010-2017 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/>.
  
  # Test that POSIX variable expansion '$(var:str=rpl)' works when used
  # with the SOURCES primary.
  
  required=cc
  . test-init.sh
  
  cat >> configure.ac << 'END'
  AC_PROG_CC
  AC_OUTPUT
  END
  
  cat > Makefile.am << 'END'
  bin_PROGRAMS = foo
  
  FOO = foo.cxx
  BAR = bar__
  BAZ = baz.
  
  # Also try an empty match suffix, to ensure that the ':=' in there is
  # not confused by the parser with an unportable assignment operator.
  foo_SOURCES = main.c $(FOO:.cxx=.c)
  dist_foo_SOURCES = $(BAR:__=.c)
  nodist_foo_SOURCES = $(BAZ:=c)
  
  bar.c baz.c:
  	echo 'int $@ (void) { return 0; }' | sed 's/\.c //' > $@
  CLEANFILES = baz.c
  CLEANFILES += bar.c # For FreeBSD make.
  
  .PHONY: test test2
  check-local: test1 test2
  test1:
  	ls -l . $(srcdir)
  	test -f $(srcdir)/bar.c
  	test -f baz.c
  test2: distdir
  	ls -l $(distdir)
  ## These sources should be distributed ...
  	test -f $(distdir)/bar.c
  	test -f $(distdir)/foo.c
  	test -f $(distdir)/main.c
  ## ... and this shouldn't.
  	test ! -r $(distdir)/baz.c
  END
  
  cat > main.c <<'END'
  int main(void)
  {
    int foo(void), bar(void), baz(void);
    return foo() + bar() + baz();
  }
  END
  
  echo 'int foo(void) { return 0; }' > foo.c
  
  $ACLOCAL
  $AUTOCONF
  $AUTOMAKE
  
  ./configure
  $MAKE
  $MAKE test1 test2
  $MAKE distcheck
  
  :
  

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