[tor-commits] [tor/master] Document required autotools versions

[nickm@xxxxxxxxxxxxxx]

commit 31c7a65d894c144647a2364bcad337ee5ae020ff
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Tue Feb 23 11:08:04 2016 -0500

    Document required autotools versions
    
    CentOS 6 is roughly the oldest thing we care about developers still
    using, and it has autoconf 2.63 / automake 1.11.  These are both
    older than openssl 1.0.0, so anybody who can't upgrade past those
    probably can't upgrade to a modern openssl either.  And since only
    people building from git or editing configure.ac/Makefile.am need to
    use autotools, I'm not totally enthused about keeping support for
    old ones anyway.
    
    Closes ticket 17732.
---
 Makefile.am      |  5 +++--
 changes/bug17732 | 10 ++++++++++
 configure.ac     |  1 +
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 1333f36..fe6f64b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -4,8 +4,9 @@
 # See LICENSE for licensing information
 
 # "foreign" means we don't follow GNU package layout standards
-# 1.9 means we require automake vesion 1.9
-AUTOMAKE_OPTIONS = foreign 1.9 subdir-objects
+# 1.11 means we require automake vesion 1.11
+# "subdir-objects" means put .o files in the same directory as the .c files
+AUTOMAKE_OPTIONS = foreign 1.11 subdir-objects
 
 ACLOCAL_AMFLAGS = -I m4
 
diff --git a/changes/bug17732 b/changes/bug17732
new file mode 100644
index 0000000..010645d
--- /dev/null
+++ b/changes/bug17732
@@ -0,0 +1,10 @@
+  o Minor features (compilation):
+    - Note our minimum required autoconf/automake versions in the
+      appropriate locations. Closes ticket 17732.
+
+  o Dependency updates:
+    - Tor now uses Autoconf version 2.63 or later, and Automake 1.11 or later
+      (released in 2008 and 2009 respectively).  If you are building Tor from
+      the git repository instead of from the source distribution, and your
+      tools are older than this, you will need to upgrade.
+      Closes ticket 17732.
diff --git a/configure.ac b/configure.ac
index aa757be..a4581e5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,6 +3,7 @@ dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
 dnl Copyright (c) 2007-2015, The Tor Project, Inc.
 dnl See LICENSE for licensing information
 
+AC_PREREQ([2.63])
 AC_INIT([tor],[0.2.8.1-alpha-dev])
 AC_CONFIG_SRCDIR([src/or/main.c])
 AC_CONFIG_MACRO_DIR([m4])

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