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-rw-r--r--libcpp/init.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/libcpp/init.c b/libcpp/init.c
index 3262184..7752fea 100644
--- a/libcpp/init.c
+++ b/libcpp/init.c
@@ -174,6 +174,12 @@ cpp_create_reader (enum c_lang lang, hash_table *table,
CPP_OPTION (pfile, warn_dollars) = 1;
CPP_OPTION (pfile, warn_variadic_macros) = 1;
CPP_OPTION (pfile, warn_builtin_macro_redefined) = 1;
+ /* By default, track locations of tokens resulting from macro
+ expansion. The '2' means, track the locations with the highest
+ accuracy. Read the comments for struct
+ cpp_options::track_macro_expansion to learn about the other
+ values. */
+ CPP_OPTION (pfile, track_macro_expansion) = 2;
CPP_OPTION (pfile, warn_normalize) = normalized_C;
CPP_OPTION (pfile, warn_literal_suffix) = 1;