我正在尝试编译ICU sqlite扩展。 系统：Ubuntu 19.04 src：sqlite-src-3310100.zip

操作历史记录：

unzip sqlte-src-3310100.zip
mkdir bld
cd bld
CflaGS="-O3" ../sqlte-src-3310100/configure && make -j8
# compilation successfull without errors except some warnings
gcc --shared -fPIC -O3 -licui18n -licudata -licuuc -I ./ -I ../src/ext/icu/ -o libSqliteIcu.so ../src/ext/icu/icu.c
# there is no errors
sudo cp libSqliteIcu.so /usr/lib/

尝试加载：

import sqlite3
conn = sqlite3.connect("database.sqlite") # или :memory: чтобы сохранить в RAM
cur = conn.cursor()
conn.enable_load_extension(True)
conn.load_extension('libSqliteIcu')

出现错误：

------------------------------------------------------
OperationalError     Traceback (most recent call last)
<ipython-input-67-d5ebe36b8718> in <module>
      3 cur = conn.cursor()
      4 conn.enable_load_extension(True)
----> 5 conn.load_extension('libSqliteIcu')

OperationalError: /lib/libSqliteIcu.so: undefined symbol: uregex_setText_64

请帮助。