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-rw-r--r--gcc/toplev.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/toplev.h b/gcc/toplev.h
index 2b2a291..033c6dc 100644
--- a/gcc/toplev.h
+++ b/gcc/toplev.h
@@ -119,6 +119,9 @@ extern void target_reinit (void);
/* A unique local time stamp, might be zero if none is available. */
extern unsigned local_tick;
+/* Top-level source file. */
+extern const char *main_input_filename;
+
extern const char *progname;
extern const char *dump_base_name;
extern const char *dump_dir_name;