[CMake] Centos8 FindICU problems

[Kent Williams]

This is a development system we're just standing up using Centos 8.

Linux build8.leepfrog.com 4.18.0-80.7.1.el8_0.x86_64 #1 SMP Sat Aug 3 
15:14:00 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
cmake version 3.11.4
gcc version 8.2.1 20180905 (Red Hat 8.2.1-3) (GCC)

Installed Packages
harfbuzz-icu.x86_64 1.7.5-3.el8                       @AppStream
icu.x86_64 60.2-7.el8                        @BaseOS
libicu.x86_64 60.2-7.el8                        @BaseOS
libicu-devel.x86_64 60.2-7.el8                        @BaseOS

Using the stock CMake FindICU.cmake
And this test CMakeLists.txt:
cmake_minimum_required(VERSION 2.8)
project(testICU)
find_package(ICU REQUIRED)

It reports failure to find ICU, and I can't work out what I'm supposed 
to do:

     CMake Error at 
/usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
       Failed to find all ICU components (missing: ICU_LIBRARY) (found 
version
       "60.2")
     Call Stack (most recent call first):
/usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:378 
(_FPHSA_FAILURE_MESSAGE)
       /usr/share/cmake/Modules/FindICU.cmake:317 
(FIND_PACKAGE_HANDLE_STANDARD_ARGS)
       CMakeLists.txt:3 (find_package)


     -- Configuring incomplete, errors occurred!
     See also "/home/kwilliams/develop/junk/CMakeFiles/CMakeOutput.log".

Any suggestions?