More work on ICU in CI

Author: gershnik

.github/workflows/test.yml

@@ -64,9 +64,12 @@ jobs:
             echo "CC=gcc-${{ matrix.version }}" >> $GITHUB_ENV
             echo "CXX=g++-${{ matrix.version }}" >> $GITHUB_ENV
           fi
+
+          sudo apt-get install -y libicu-dev
         fi
         if [[ '${{ matrix.os }}' == macos-* ]]; then
-            echo "DEVELOPER_DIR=/Applications/Xcode_${{ matrix.version }}.app" >> $GITHUB_ENV
+          brew install icu4c
+          echo "DEVELOPER_DIR=/Applications/Xcode_${{ matrix.version }}.app" >> $GITHUB_ENV
         fi
 
     - name: Configure

test/CMakeLists.txt

@@ -123,7 +123,7 @@ if (${CMAKE_SYSTEM_NAME} STREQUAL Android)
 endif()
 
 set(LIB_TYPES " ")
-if (ICU_UC_FOUND)
+if (ICU_FOUND AND ICU_UC_FOUND)
     list(APPEND LIB_TYPES _headers)
 endif()