如何在debian中升级intl icu 57.1到62.1？

Question

I try to install icu 62.1 in php... same version 57.1 and not 62.1

This is for debian 9, Operation A:

1. apt-get remove php7.2-intl

2. apt install php7.2-dev

3. download icu-install.sh

4. icu-install.sh install 62.1

5. touch /etc/php/7.2/fpm/conf.d/20-intl.ini && sudo bash -c 'echo "extension=intl.so" > /etc/php/7.2/fpm/conf.d/20-intl.ini'

6. service php7.2-fpm restart

Operation B:

1. download icu4c-62_1-src.tgz

2. decompress

3. ./configure --prefix=/usr && make && make install

I expect intl with icu 62.1 is installed but not...php not read intl in phpinfo()