kc3-lang/automake/t/lex-depend.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/lex-depend.sh

• #! /bin/sh
  # Copyright (C) 2011-2017 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 to make sure automatic dependency tracking work with Lex/C.
  # Test suggested by PR automake/6.
  
  required='cc lex'
  . test-init.sh
  
  cat >> configure.ac << 'END'
  AC_PROG_CC
  AM_PROG_LEX
  AC_OUTPUT
  END
  
  cat > Makefile.am << 'END'
  bin_PROGRAMS = zoo
  zoo_SOURCES = joe.l
  LDADD = $(LEXLIB)
  
  .PHONY: test-deps-exist
  test-deps-exist:
  	ls -l $(DEPDIR) ;: For debugging.
  	test -f $(DEPDIR)/joe.Po
  
  .PHONY: test-obj-updated
  test-obj-updated: joe.$(OBJEXT)
  	is_newest joe.$(OBJEXT) my-hdr.h
  END
  
  cat > joe.l << 'END'
  %{
  #define YY_NO_UNISTD_H 1
  %}
  %%
  "foo" return EOF;
  .
  %%
  #include "my-hdr.h"
  int main (void)
  {
    printf("%s\n", MESSAGE);
    return 0;
  }
  /* Avoid possible link errors. */
  int yywrap (void)
  {
    return 1;
  }
  END
  
  cat > my-hdr.h <<'END'
  #include <stdio.h>
  #define MESSAGE "Hello, World!"
  END
  
  $ACLOCAL
  $AUTOMAKE -a
  
  $FGREP joe.Po Makefile.in
  
  $AUTOCONF
  # Try to enable dependency tracking if possible, even if that means
  # using slow dependency extractors.
  ./configure --enable-dependency-tracking
  
  $MAKE test-deps-exist
  $MAKE
  cross_compiling || test "$(./zoo)" = 'Hello, World!' || exit 1
  
  $sleep
  cat >> my-hdr.h << 'END'
  #undef MESSAGE
  #define MESSAGE "Howdy, Earth!"
  END
  $MAKE test-obj-updated
  $MAKE
  cross_compiling || test "$(./zoo)" = 'Howdy, Earth!' || exit 1
  
  :
  

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