Suppress -Wtype-limits warning in DuckDB C++ compilation (#6957)

Signed-off-by: Joe Isaacs <joe.isaacs@live.co.uk>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: joseph-isaacs

vortex-duckdb/build.rs

@@ -325,8 +325,14 @@ fn c2rust(crate_dir: &Path, duckdb_include_dir: &Path) {
 fn cpp(duckdb_include_dir: &Path) {
     cc::Build::new()
         .std("c++20")
-        // Duckdb sources fail -Wno-unused-parameter
-        .flags(["-Wall", "-Wextra", "-Wpedantic", "-Wno-unused-parameter"])
+        // Duckdb sources fail -Wno-unused-parameter and -Wno-type-limits
+        .flags([
+            "-Wall",
+            "-Wextra",
+            "-Wpedantic",
+            "-Wno-unused-parameter",
+            "-Wno-type-limits",
+        ])
         .cpp(true)
         .include(duckdb_include_dir)
         .include("cpp/include")

vortex-duckdb/cpp/CMakeLists.txt

@@ -23,7 +23,7 @@ if (NOT CMAKE_BUILD_TYPE)
 endif()
 
 # Enable compiler warnings (matching build.rs flags).
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic -Wno-type-limits")
 
 # Find DuckDB include directory via the symlink created by build.rs.
 # The symlink points to target/duckdb-source-vX.Y.Z which contains duckdb-X.Y.Z/