GH-46152: [C++] Implement acero directory in Meson

Author: WillAyd

cpp/meson.build

@@ -65,7 +65,8 @@ needs_s3 = get_option('s3')
 needs_filesystem = get_option('filesystem') or needs_azure or needs_gcs or needs_hdfs or needs_s3
 needs_integration = get_option('integration')
 needs_tests = get_option('tests')
-needs_ipc = get_option('ipc') or needs_tests or needs_benchmarks
+needs_acero = get_option('acero')
+needs_ipc = get_option('ipc') or needs_tests or needs_acero or needs_benchmarks
 needs_testing = get_option('testing') or needs_tests or needs_benchmarks or needs_integration
 needs_json = get_option('json') or needs_testing
 

cpp/meson.options

@@ -15,6 +15,13 @@
 # specific language governing permissions and limitations
 # under the License.
 
+option(
+    'acero',
+    type: 'boolean',
+    description: 'Build the Arrow Acero Engine Module',
+    value: false,
+)
+
 option(
     'azure',
     type: 'boolean',

cpp/src/arrow/meson.build

@@ -621,6 +621,10 @@ if needs_csv
     subdir('csv')
 endif
 
+if needs_acero
+    subdir('acero')
+endif
+
 if needs_filesystem
     subdir('filesystem')
 endif