--- a/ortools/base/source_location.h	2026-01-09 13:10:50.000000000 +0100
+++ b/ortools/base/source_location.h	2026-10-19 18:11:06.717561872 +0200
@@ -32,6 +32,13 @@
 
 #include "absl/base/config.h"
 
+// newer Abseil ships absl::SourceLocation itself
+#if __has_include("absl/types/source_location.h")
+#include "absl/types/source_location.h"
+#define ABSL_LOC ::absl::SourceLocation::current()
+#define ABSL_LOC_CURRENT_DEFAULT_ARG = ::absl::SourceLocation::current()
+#else
+
 namespace absl {
 
 // Class representing a specific location in the source code of a program.
@@ -140,4 +147,6 @@ class SourceLocation {
 #define ABSL_LOC_CURRENT_DEFAULT_ARG
 #endif
 
+#endif  // __has_include("absl/types/source_location.h")
+
 #endif  // ORTOOLS_BASE_SOURCE_LOCATION_H_