(arrow) branch main updated: GH-45772: [C++] Export Arrow as dependency from Meson configuration (#45774)

[kou]

This is an automated email from the ASF dual-hosted git repository.

kou pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/arrow.git


The following commit(s) were added to refs/heads/main by this push:
     new c2e9798ce9 GH-45772: [C++] Export Arrow as dependency from Meson 
configuration (#45774)
c2e9798ce9 is described below

commit c2e9798ce9ae80af3c7b2f6a56f9f9255621253e
Author: William Ayd <william....@icloud.com>
AuthorDate: Thu Mar 13 22:20:37 2025 -0400

    GH-45772: [C++] Export Arrow as dependency from Meson configuration (#45774)
    
    ### Rationale for this change
    
    This makes it possible for downstream libraries to include Arrow in their 
Meson builds. To do so, downstream libraries will simply have to:
    
    ```python
    arrow_dep = dependency('arrow')
    ```
    
    While using Arrow as a subproject. After the next release, we may also be 
able to add Arrow to the Meson WrapDB.
    
    ### What changes are included in this PR?
    
    An updated meson.build configuration file
    
    ### Are these changes tested?
    
    No - not yet applicable
    
    ### Are there any user-facing changes?
    
    No
    
    * GitHub Issue: #45772
    
    Authored-by: Will Ayd <william....@icloud.com>
    Signed-off-by: Sutou Kouhei <k...@clear-code.com>
---
 cpp/src/arrow/meson.build | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/cpp/src/arrow/meson.build b/cpp/src/arrow/meson.build
index ca95236722..e4f4b98195 100644
--- a/cpp/src/arrow/meson.build
+++ b/cpp/src/arrow/meson.build
@@ -326,6 +326,11 @@ arrow_lib = library(
     install: true,
 )
 
+arrow_dep = declare_dependency(
+    include_directories: [include_dir],
+    link_with: arrow_lib,
+)
+
 # Meson does not allow you to glob for headers to install. See also
 # 
https://mesonbuild.com/FAQ.html#why-cant-i-specify-target-files-with-a-wildcard
 # install_subdir would be usable if the directory only contained headers
@@ -397,15 +402,12 @@ endif
 arrow_test_lib = static_library(
     'arrow_testing',
     sources: arrow_testing_srcs,
-    include_directories: [include_dir],
-    link_with: [arrow_lib],
-    dependencies: [filesystem_dep, gtest_main_dep],
+    dependencies: [arrow_dep, filesystem_dep, gtest_main_dep],
 )
 
 arrow_test_dep = declare_dependency(
-    link_with: [arrow_lib, arrow_test_lib],
-    include_directories: [include_dir],
-    dependencies: [filesystem_dep, gmock_dep, gtest_main_dep],
+    link_with: [arrow_test_lib],
+    dependencies: [arrow_dep, filesystem_dep, gmock_dep, gtest_main_dep],
 )
 
 array_array_test = executable(