GH-45142: [C++] Ensure using cpp/cmake_modules/*.cmake (#45143)

### Rationale for this change If we use `list(APPEND)` not `list(PREPEND)` for `cpp/cmake_modules/`, `*.cmake` that doesn't exist in `cpp/cmake_modules/` may be used. See also: https://github.com/apache/iceberg-cpp/pull/6/files#r1900075993 ### What changes are included in this PR? Use `list(PREPEND)`. ### Are these changes tested? Yes. ### Are there any user-facing changes? Yes. * GitHub Issue: #45142 Authored-by: Sutou Kouhei <[email protected]> Signed-off-by: Sutou Kouhei <[email protected]>
apache · Jan 1, 2025 · 7f3b32e · 7f3b32e
1 parent 1df4889
commit 7f3b32e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
@@ -92,7 +92,7 @@ endif()
 string(TOLOWER ${CMAKE_BUILD_TYPE} LOWERCASE_BUILD_TYPE)
 string(TOUPPER ${CMAKE_BUILD_TYPE} UPPERCASE_BUILD_TYPE)
 
-list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules")
+list(PREPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules")
 
 # this must be included before the project() command, because of the way
 # vcpkg (ab)uses CMAKE_TOOLCHAIN_FILE to inject its logic into CMake