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-rw-r--r--src/lisp.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/lisp.h b/src/lisp.h
index 94ba6bc394..a1fac63abd 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -561,8 +561,12 @@ typedef struct
usually. '\0'-terminated. This really shouldn't have a fixed size. */
char echobuf[ECHOBUFSIZE];
} PERDISPLAY;
+#ifdef MULTI_PERDISPLAY
+extern PERDISPLAY *get_perdisplay ();
+#else
extern PERDISPLAY the_only_perdisplay;
#define get_perdisplay(f) (&the_only_perdisplay)
+#endif
/* In a cons, the markbit of the car is the gc mark bit */