kc3-lang/automake/t/yacc-basic.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/yacc-basic.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/>.
  
  # Basic semantic checks on Yacc support (without yacc-generated headers).
  # Keep in sync with sister test 'yacc-cxx.sh'.
  
  required='cc yacc'
  . test-init.sh
  
  cat >> configure.ac << 'END'
  AC_PROG_CC
  AC_PROG_YACC
  AC_OUTPUT
  END
  
  cat > Makefile.am << 'END'
  bin_PROGRAMS = foo bar
  foo_SOURCES = parse.y foo.c
  bar_SOURCES = $(foo_SOURCES)
  bar_YFLAGS = -v
  
  .PHONY: echo-distcom
  echo-distcom:
  	@echo ' ' $(DIST_COMMON) ' '
  END
  
  cat > parse.y << 'END'
  %{
  #include <stdio.h>
  #include <stdlib.h>
  int yylex () { return getchar (); }
  void yyerror (char *s) {}
  %}
  %%
  a : 'a' { exit(0); };
  END
  
  cat > foo.c << 'END'
  int main () { yyparse (); return 1; }
  END
  
  $ACLOCAL
  $AUTOCONF
  $AUTOMAKE -a
  
  ./configure
  $MAKE
  ls -l
  # The Yacc-derived C sources must be created, and not removed once
  # compiled (i.e., not treated like "intermediate files" in the GNU
  # make sense).
  test -f parse.c
  test -f bar-parse.c
  # Check that per-object flags are honored.
  test -f bar-parse.output
  
  if ! cross_compiling; then
    echo a | ./foo
    echo b | ./foo && exit 1
    echo a | ./bar
    echo b | ./bar && exit 1
    : For shells with busted 'set -e'.
  fi
  
  # The Yacc-derived C sources must be shipped.
  $MAKE echo-distcom
  $MAKE -s echo-distcom | grep '[ /]parse\.c '
  $MAKE -s echo-distcom | grep '[ /]bar-parse\.c '
  $MAKE distdir
  ls -l $distdir
  test -f $distdir/parse.c
  test -f $distdir/bar-parse.c
  
  # Sanity check on distribution.
  # Note that, for this to succeed, bar-parse.output must either not
  # be distributed, or properly cleaned by automake-generated rules.
  # We don't want to set the exact semantics yet, but want to ensure
  # they are are consistent.
  yl_distcheck
  
  # Make sure that the Yacc-derived C sources are erased by
  # maintainer-clean, and not by distclean.
  test -f parse.c
  test -f bar-parse.c
  $MAKE distclean
  ls -l
  test -f parse.c
  test -f bar-parse.c
  ./configure # We must re-create 'Makefile'.
  $MAKE maintainer-clean
  ls -l
  test ! -e parse.c
  test ! -e bar-parse.c
  
  :
  

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