GH-46155: [C++] Implement Tensorflow directory in Meson (#46156)

### Rationale for this change

This continues improving the coverage of the Meson build configuration

### What changes are included in this PR?

Added the Tensorflow directory

### Are these changes tested?

Yes

### Are there any user-facing changes?

No
* GitHub Issue: #46155

Authored-by: Will Ayd <[email protected]>
Signed-off-by: Sutou Kouhei <[email protected]>

Author: WillAyd

cpp/meson.options

@@ -73,6 +73,13 @@ option(
     type: 'feature',
     description: 'Build Arrow with S3 support (requires the AWS SDK for C++)',
 )
+
+option(
+    'tensorflow',
+    type: 'feature',
+    description: 'Build Arrow with TensorFlow support enabled',
+)
+
 option('testing', type: 'feature', description: 'Build the Arrow testing libraries')
 option('tests', type: 'feature', description: 'Build the Arrow googletest unit tests')
 

cpp/src/arrow/adapters/tensorflow/meson.build

@@ -0,0 +1,25 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+install_headers(['convert.h'], subdir: 'arrow/adapters/tensorflow')
+
+pkg.generate(
+    filebase: 'arrow-tensorflow',
+    name: 'Apache Arrow Tensorflow',
+    description: 'Tensorflow modules for Apache Arrow',
+    requires: ['arrow'],
+)

cpp/src/arrow/meson.build

@@ -727,3 +727,7 @@ endif
 if needs_ipc
     subdir('ipc')
 endif
+
+if get_option('tensorflow').enabled()
+    subdir('adapters/tensorflow')
+endif