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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#! /bin/sh
# Copyright (C) 2003-2017 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/>.
# Check for support for colon separated input files in AC_CONFIG_FILES,
# with sources in sub directories.
. test-init.sh
cat > configure.ac << END
AC_INIT([$me], [1.0])
AM_INIT_AUTOMAKE
AC_CONFIG_FILES([
Makefile:mk/toplevel.in
sub/Makefile:mk/sub.in
mk/Makefile
])
AC_OUTPUT
END
mkdir mk sub
cat >mk/Makefile.am <<'EOF'
all-local:
@echo in--mk
EOF
cat >mk/sub.am <<'EOF'
EXTRA_DIST = foo
all-local:
@echo in--sub
EOF
cat >mk/toplevel.am <<'EOF'
all-local:
@echo at--toplevel
SUBDIRS = mk sub
EOF
# We have to distribute something in foo, because some versions
# of tar do not archive empty directories when passed the 'o'
# flags. (This was fixed in GNU tar 1.12, but older
# versions are still used: NetBSD 1.6.1 ships with tar 1.11.2).
#
# If sub/ is missing from the archive, config.status will fail
# to compute $ac_abs_srcdir during a VPATH build: config.status
# is able to create sub/ in the build tree, but it assumes the
# directory already exists in the source tree.
echo bar > sub/foo
$ACLOCAL
$AUTOCONF
$AUTOMAKE
./configure
run_make -O
grep in--mk stdout
grep in--sub stdout
grep at--toplevel stdout
$MAKE distcheck