1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/c-errors.c b/gcc/c-errors.c
index 2a2fdc0c440..fa71b8cfa97 100644
--- a/gcc/c-errors.c
+++ b/gcc/c-errors.c
@@ -43,3 +43,21 @@ pedwarn_c99 (const char *msgid, ...)
   report_diagnostic (&diagnostic);
   va_end (ap);
 }
+
+/* Issue an ISO C90 pedantic warning MSGID.  This function is supposed to
+   be used for matters that are allowed in ISO C99 but not supported in
+   ISO C90, thus we explicitly don't pedwarn when C99 is specified.
+   (There is no flag_c90.)  */
+
+void
+pedwarn_c90 (const char *msgid, ...)
+{
+  diagnostic_info diagnostic;
+  va_list ap;
+
+  va_start (ap, msgid);
+  diagnostic_set_info (&diagnostic, msgid, &ap, input_location,
+                       flag_isoc99 ? DK_WARNING : pedantic_error_kind ());
+  report_diagnostic (&diagnostic);
+  va_end (ap);
+}