Wrong env-var name for ICU root dir on Windows

[user-canada]

Problem

Considering the following:

# For windows or non standard installation, define ICU_ROOT_DIR variable to point to the root installation of ICU. Two ways:
#   - run cmake with -DICU_ROOT_DIR=<PATH>

The specified env-var name is ICU_ROOT_DIR, but looking inside FindICU.cmake, this identifier cannot be found. Instead, you will find "ICU_ROOT".

The issue here was that I was not able to load my CMake project. It was yielding this error:

CMake Error at C:/Program Files/JetBrains/CLion 2022.2.1/bin/cmake/win/share/cmake-3.23/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
  Failed to find all ICU components (missing: ICU_INCLUDE_DIR ICU_LIBRARY)
  (Required is at least version "73.1")

Solution

Having changed env-var name ICU_ROOT_DIR to ICU_ROOT fixes the issue.