define icu paths

.github/workflows/cmake-multi-platform.yml

@@ -151,6 +151,14 @@ jobs:
       - name: Configure CMake Unix
         if: runner.os != 'Windows'
         run: |
+          if [ "$RUNNER_OS" == "macOS" ]; then
+            export ICU_ROOT=/usr/local/lib/icu/74.2
+            export CMAKE_PREFIX_PATH=$ICU_ROOT
+            export PKG_CONFIG_PATH=$ICU_ROOT/lib/pkgconfig:$PKG_CONFIG_PATH
+            export LDFLAGS="-L$ICU_ROOT/lib $LDFLAGS"
+            export CPPFLAGS="-I$ICU_ROOT/include $CPPFLAGS"
+            export PATH="$ICU_ROOT/bin:$PATH"
+          fi
           cmake -B ${{ steps.strings.outputs.build-output-dir }} -DCMAKE_CXX_COMPILER=${{ matrix.cpp_compiler }} -DCMAKE_C_COMPILER=${{ matrix.c_compiler }} -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} -S ${{ github.workspace }}
 
       - name: Configure CMake Windows
@@ -169,6 +177,14 @@ jobs:
         if: runner.os != 'Windows'
         # Build your program with the given configuration. Note that --config is needed because the default Windows generator is a multi-config generator (Visual Studio generator).
         run: |
+          if [ "$RUNNER_OS" == "macOS" ]; then
+            export ICU_ROOT=/usr/local/lib/icu/74.2
+            export CMAKE_PREFIX_PATH=$ICU_ROOT
+            export PKG_CONFIG_PATH=$ICU_ROOT/lib/pkgconfig:$PKG_CONFIG_PATH
+            export LDFLAGS="-L$ICU_ROOT/lib $LDFLAGS"
+            export CPPFLAGS="-I$ICU_ROOT/include $CPPFLAGS"
+            export PATH="$ICU_ROOT/bin:$PATH"
+          fi
           cmake --build ${{ steps.strings.outputs.build-output-dir }} --config ${{ matrix.build_type }} --parallel 6
 
       - name: Build Windows

CMakeLists.txt

@@ -15,11 +15,12 @@ if(APPLE)
     # )
 
     # Manually specify the include and library directories for ICU
-    # set(ICU_INCLUDE_DIR ${ICU_ROOT}/include)
-    # set(ICU_LIBRARY_DIR ${ICU_ROOT}/lib)
+    set(ICU_ROOT /usr/local/lib/icu/74.2)
+    set(ICU_INCLUDE_DIR ${ICU_ROOT}/include)
+    set(ICU_LIBRARY_DIR ${ICU_ROOT}/lib)
 
     # Find and link ICU
-    # include_directories(${ICU_INCLUDE_DIR})
+    include_directories(${ICU_INCLUDE_DIR})
     find_package(ICU REQUIRED COMPONENTS uc i18n data)
 
     # Execute brew command to get the ONEDNN_ROOT