diff --git a/leveldb/build_deps.sh b/leveldb/build_deps.sh
deleted file mode 100644
index 968ad78..0000000
--- a/leveldb/build_deps.sh
+++ /dev/null
@@ -1,55 +0,0 @@
-#!/bin/bash
-
-#refer https://github.com/norton/lets/blob/master/c_src/build_deps.sh
-
-SNAPPY_DIR=/usr/local/snappy
-LEVELDB_DIR=/usr/local/leveldb
-
-ROOT_DIR=$(pwd)
-
-BUILD_DIR=/tmp/build_leveldb
-
-mkdir -p $BUILD_DIR
-
-cd $BUILD_DIR
-
-if [ ! -f $SNAPPY_DIR/lib/libsnappy.a ]; then
-    (git clone git@github.com:siddontang/snappy.git && \
-        cd ./snappy && \
-        ./configure --prefix=$SNAPPY_DIR && \
-        make && \
-        make install && \
-        cd ..)
-else
-    echo "skip install snappy"
-fi
-
-cd $BUILD_DIR
-
-if [ ! -f $LEVELDB_DIR/lib/libleveldb.a ]; then
-    (git clone git@github.com:siddontang/leveldb.git && \
-        cd ./leveldb && \
-        echo "echo \"PLATFORM_CFLAGS+=-I$SNAPPY_DIR/include\" >> build_config.mk" >> build_detect_platform &&
-        echo "echo \"PLATFORM_CXXFLAGS+=-I$SNAPPY_DIR/include\" >> build_config.mk" >> build_detect_platform &&
-        echo "echo \"PLATFORM_LDFLAGS+=-L $SNAPPY_DIR/lib -lsnappy\" >> build_config.mk" >> build_detect_platform &&
-        make SNAPPY=1 && \
-        make && \
-        mkdir -p $LEVELDB_DIR/include/leveldb && \
-        install include/leveldb/*.h $LEVELDB_DIR/include/leveldb && \
-        mkdir -p $LEVELDB_DIR/lib && \
-        cp -f libleveldb.* $LEVELDB_DIR/lib &&\
-        cd ..)
-else
-    echo "skip install leveldb"
-fi
-
-cd $ROOT_DIR
-
-export CGO_CFLAGS="-I$LEVELDB_DIR/include -I$SNAPPY_DIR/include"
-export CGO_CXXFLAGS="-I$LEVELDB_DIR/include -I$SNAPPY_DIR/include"
-export CGO_LDFLAGS="-L$LEVELDB_DIR/lib -L$SNAPPY_DIR/lib -lsnappy"
-export LD_LIBRARY_PATH=$(add_path $LD_LIBRARY_PATH $SNAPPY_DIR/lib)
-export LD_LIBRARY_PATH=$(add_path $LD_LIBRARY_PATH $LEVELDB_DIR/lib)
-
-
-go get github.com/jmhodges/levigo 
diff --git a/leveldb/dev.sh b/leveldb/dev.sh
new file mode 100644
index 0000000..cdd826d
--- /dev/null
+++ b/leveldb/dev.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+SNAPPY_DIR=/usr/local/snappy
+LEVELDB_DIR=/usr/local/leveldb
+
+export CGO_CFLAGS="-I$LEVELDB_DIR/include -I$SNAPPY_DIR/include"
+export CGO_CXXFLAGS="-I$LEVELDB_DIR/include -I$SNAPPY_DIR/include"
+export CGO_LDFLAGS="-L$LEVELDB_DIR/lib -L$SNAPPY_DIR/lib -lsnappy"
+export LD_LIBRARY_PATH=$(add_path $LD_LIBRARY_PATH $SNAPPY_DIR/lib)
+export LD_LIBRARY_PATH=$(add_path $LD_LIBRARY_PATH $LEVELDB_DIR/lib)
+
+go get github.com/jmhodges/levigo 
diff --git a/leveldb/readme.md b/leveldb/readme.md
index bc7e4f0..fd68753 100644
--- a/leveldb/readme.md
+++ b/leveldb/readme.md
@@ -2,10 +2,17 @@ a leveldb wrapper for levigo
 
 simplify use leveldb in go
 
+# Build leveldb
+
+see [https://gist.github.com/siddontang/dfbc835e06e47d0f6297](https://gist.github.com/siddontang/dfbc835e06e47d0f6297) for build leveldb
+
 # Install
 
-+ download leveldb and snappy source, uncompress and set source directory in build_deps.sh
-+ . ./build_deps.sh
+you must first set CGO_CFLAGS, CGO_LDFLAGS to your leveldb and snappy directory.
+
+dev.sh may help you:
+
+    . ./dev.sh
 
 # Performance