pregenerated build_config.mk for leveldb

--- deps/eleveldb/c_src/leveldb/build_config.mk.orig	Wed Mar  1 11:37:43 2017
+++ deps/eleveldb/c_src/leveldb/build_config.mk	Wed Mar  1 11:42:51 2017
@@ -0,0 +1,11 @@
+SOURCES=db/builder.cc db/c.cc db/db_impl.cc db/db_iter.cc db/dbformat.cc db/filename.cc db/log_reader.cc db/log_writer.cc db/memtable.cc db/repair.cc db/table_cache.cc db/version_edit.cc db/version_set.cc db/write_batch.cc leveldb_os/compile_opt.cc leveldb_os/expiry_os_stub.cc leveldb_os/hot_backup_stub.cc leveldb_os/warming_stub.cc table/block.cc table/block_builder.cc table/filter_block.cc table/format.cc table/iterator.cc table/merger.cc table/table.cc table/table_builder.cc table/two_level_iterator.cc util/arena.cc util/bloom.cc util/bloom2.cc util/cache.cc util/cache2.cc util/coding.cc util/comparator.cc util/crc32c.cc util/db_list.cc util/env.cc util/env_posix.cc util/expiry_os.cc util/filter_policy.cc util/flexcache.cc util/hash.cc util/histogram.cc util/hot_threads.cc util/logging.cc util/murmurhash.cc util/options.cc util/perf_count.cc util/status.cc util/thread_tasks.cc util/throttle.cc  port/port_posix.cc
+MEMENV_SOURCES=helpers/memenv/memenv.cc
+TEST_SOURCES=db/c_test.c db/corruption_test.cc db/db_test.cc db/dbformat_test.cc db/filename_test.cc db/log_test.cc db/penalty_test.cc db/skiplist_test.cc db/version_edit_test.cc db/version_set_test.cc db/write_batch_test.cc table/filter_block_test.cc table/table_test.cc util/arena_test.cc util/bloom_test.cc util/cache2_test.cc util/cache_test.cc util/coding_test.cc util/crc32c_test.cc util/env_test.cc util/expiry_os_test.cc util/flexcache_test.cc util/hot_thread_test.cc util/perf_count_test.cc 
+PLATFORM=OS_OPENBSD
+PLATFORM_LDFLAGS=-pthread
+PLATFORM_CCFLAGS= -fno-builtin-memcmp -D_REENTRANT -DOS_OPENBSD -DLEVELDB_PLATFORM_POSIX 
+PLATFORM_CXXFLAGS= -fno-builtin-memcmp -D_REENTRANT -DOS_OPENBSD -DLEVELDB_PLATFORM_POSIX 
+PLATFORM_SHARED_CFLAGS=-fPIC
+PLATFORM_SHARED_EXT=
+PLATFORM_SHARED_LDFLAGS=-shared -Wl,-soname -Wl,
+PLATFORM_SHARED_VERSIONED=true
