FreeBSDへ最新Google LevelDBのインストール

> gmake
Makefile:16: *** missing separator.  Stop.

ああ，こんなスクリプトが入ったのね．．．

# detect what platform we're building on
$(shell sh ./build_detect_platform)

この」build_detect_platformスクリプトに，FreeBSD用のコードも加えました．

    FreeBSD)
        PLATFORM=OS_FREEBSD
        echo "PLATFORM_CFLAGS=-pthread -DOS_FREEBSD" >> build_config.mk
        echo "PLATFORM_LDFLAGS=-lpthread"  >> build_config.mk

gmakeするとエラーが．．．

g++45 -c -I. -I./include -fno-builtin-memcmp -DLEVELDB_PLATFORM_POSIX -pthread -DOS_FREEBSD -O2 -DNDEBUG         db/db_impl.cc -o db/db_impl.o
In file included from db/db_impl.cc:5:0:
./db/db_impl.h:121:3: error: 'AtomicPointer' in namespace 'leveldb::port' does not name a type 

AtomicPointerを定義しているport/atomic_pointer.hがincludeされていなかったので，db/db_impl.hに行を追加しました．
（なんでこんなコードがコミットされてるんや．．．）

#include "port/atomic_pointer.h"

再びgmakeすると，似たエラー．．．

g++45 -c -I. -I./include -fno-builtin-memcmp -DLEVELDB_PLATFORM_POSIX -pthread -DOS_FREEBSD -O2 -DNDEBUG         db/memtable.cc -o db/memtable.o
In file included from ./db/memtable.h:11:0,
                 from db/memtable.cc:5:
./db/skiplist.h:105:3: error: 'AtomicPointer' in namespace 'leveldb::port' does not name a type

また同じく，インクルードを追加．

#include "port/port.h"
#include "port/atomic_pointer.h" // ここを追加
#include "util/arena.h"

できた！

ar -rs libleveldb.a ./db/builder.o ./db/db_impl.o ./db/db_iter.o ./db/filename.o ./db/dbformat.o ./db/log_reader.o ./db/log_writer.o ./db/memtable.o ./db/repair.o ./db/table_cache.o ./db/version_edit.o ./db/version_set.o ./db/write_batch.o ./port/port_posix.o ./table/block.o ./table/block_builder.o ./table/format.o ./table/iterator.o ./table/merger.o ./table/table.o ./table/table_builder.o ./table/two_level_iterator.o ./util/arena.o ./util/cache.o ./util/coding.o ./util/comparator.o ./util/crc32c.o ./util/env.o ./util/env_posix.o ./util/hash.o ./util/histogram.o ./util/logging.o ./util/options.o ./util/status.o
ar: warning: creating libleveldb.a

テスト．．．

> env LD_LIBRARY_PATH=/usr/local/lib/gcc45/ ./db_test
==== Test DBTest.Empty
==== Test DBTest.ReadWrite
==== Test DBTest.PutDeleteGet
==== Test DBTest.IterEmpty
==== Test DBTest.IterSingle
==== Test DBTest.IterMulti
==== Test DBTest.IterSmallAndLargeMix
==== Test DBTest.Recover
==== Test DBTest.RecoveryWithEmptyLog
==== Test DBTest.MinorCompactionsHappen
==== Test DBTest.RecoverWithLargeLog
==== Test DBTest.CompactionsGenerateMultipleFiles
（中略）
2705 entries compared: ok=1
==== PASSED 24 tests

OK!