Dynamic decision to swap threads or not on Erlang Write operation

BASHO_RELEASES

@@ -1,3 +1,45 @@
+github.com tag 2.0.34 - February 15, 2017
+-----------------------------------------
+mv-hot-backup2:  - correct MakeTieredDbname() within db/filename.cc
+                   for case where dbname input is blank and fast/slow
+                   already populated in options.  Corrects issue
+                   with hot backup in non-tiered storage situations
+
+github.com tag 2.0.33 - November 21, 2016
+-----------------------------------------
+mv-bucket-expiry:  - partial branch to enable X-Riak-Meta-Expiry-Base-Seconds
+                     property within enterprise edition
+
+github.com tag 2.0.32 - November 8, 2016
+----------------------------------------
+ - version shipped with Riak 2.2
+** additional race condition hardening when faced with two threads on same iterator
+**  (one iterating async_iterator_move() and one closing async_iterator_close())
+ - wrap async_iterator_move operations with locked CloseMutex
+ - create and then use new manual SpinLock within RetrieveItrObject
+ - adapt origin spin lock code for Solaris / SmartOS compiling
+
+github.com tag 2.0.31 - November 1, 2016
+----------------------------------------
+ - includes leveldb 2.0.31 (mv-no-md-expiry & mv-tuning8)
+mv-ref-hardening:   - series of thread hardening changes
+                      related to AAE use of iterators. Biggest
+                      fix was isolating AAE using one thread to
+                      close while another was still moving, then
+                      defending against it
+
+github.com tag 2.0.30 - October 11, 2016
+----------------------------------------
+ - includes leveldb 2.0.30 (mv-delayed-bloom)
+
+github.com tag 2.0.28 - September 7, 2016
+-----------------------------------------
+Clarify which compression algorithm used for default:
+  1. leveldb open source users: lz4 default
+  2. eleveldb open source users: snappy default
+  3. riak.conf / app.config users of older generation: snappy default
+  4. riak.conf from Riak 2.2: lz4 default
+
 github.com tag 2.0.27 - August 22, 2016
 ---------------------------------------
 mv-mem-fences:  fix iterator double delete bug in eleveldb and

c_src/build_deps.sh

@@ -8,7 +8,7 @@ if [ `uname -s` = 'SunOS' -a "${POSIX_SHELL}" != "true" ]; then
 fi
 unset POSIX_SHELL # clear it so if we invoke other scripts, they run as ksh as well
 
-LEVELDB_VSN=""
+LEVELDB_VSN="mv-nonblocking-write3"
 
 SNAPPY_VSN="1.0.4"
 
@@ -65,9 +65,11 @@ case "$1" in
         ;;
 
     *)
+        export MACOSX_DEPLOYMENT_TARGET=10.8
+
         if [ ! -d snappy-$SNAPPY_VSN ]; then
             tar -xzf snappy-$SNAPPY_VSN.tar.gz
-            (cd snappy-$SNAPPY_VSN && ./configure --prefix=$BASEDIR/system --libdir=$BASEDIR/system/lib --with-pic)
+            (cd snappy-$SNAPPY_VSN && ./configure --disable-shared --prefix=$BASEDIR/system --libdir=$BASEDIR/system/lib --with-pic)
         fi
 
         if [ ! -f system/lib/libsnappy.a ]; then