Impossible to build php configure: error: Package requirements (icu-uc >= 50.1 icu-io icu-i18n)

[netswitch]

Hello
I am having trouble building php on a CentOS 7.4 server.
./build php n throws an error :

checking for icu-uc >= 50.1 icu-io icu-i18n... no
configure: error: Package requirements (icu-uc >= 50.1 icu-io icu-i18n) were not met:

Requested 'icu-uc >= 50.1' but version of icu-uc is 4.8.1.1

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

I have tryed

./build clean
./build update
./build icu

but ./build icu only shows the list of options of build script.
I have updated libicu-devel with yum.

Any clue of what else to do ?

 

[netswitch]

Installed Packages
Name : libicu-devel
Arch : x86_64
Version : 50.2
Release : 4.el7_7
Size : 3.9 M
Repo : installed
From repo : base

 

[smtalk]

Try:

mv /usr/local/icu /usr/local/icu_backup

 

[netswitch]

Thanks, that fixed it !