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-rw-r--r--src/cmd/troff/fns.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/cmd/troff/fns.h b/src/cmd/troff/fns.h
index 922a3a80..d04fd037 100644
--- a/src/cmd/troff/fns.h
+++ b/src/cmd/troff/fns.h
@@ -172,6 +172,7 @@ void casefl(void);
void caseev(void);
void envcopy(Env *e1, Env *e2);
void caseel(void);
+void caseei(void);
void caseie(void);
void casexif(void);
void caseif(void);