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-rw-r--r--gcc/c-common.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/c-common.h b/gcc/c-common.h
index a072710c9ab..10933e9dd82 100644
--- a/gcc/c-common.h
+++ b/gcc/c-common.h
@@ -358,8 +358,8 @@ extern char flag_no_line_commands;
extern char flag_no_output;
-/* Nonzero means dump macros in some fashion; contains the 'D', 'M' or
- 'N' of the command line switch. */
+/* Nonzero means dump macros in some fashion; contains the 'D', 'M',
+ 'N' or 'U' of the command line switch. */
extern char flag_dump_macros;