[cff] Minor
diff --git a/src/hb-subset-cff1.cc b/src/hb-subset-cff1.cc
index a69dd93..ab3ad09 100644
--- a/src/hb-subset-cff1.cc
+++ b/src/hb-subset-cff1.cc
@@ -1064,7 +1064,7 @@
   return true;
 }
 
-static bool
+static inline bool
 _hb_subset_cff1 (const OT::cff1::accelerator_subset_t  &acc,
 		const char		*data,
 		hb_subset_plan_t	*plan,
diff --git a/src/hb-subset-cff2.cc b/src/hb-subset-cff2.cc
index caee175..9a03c3e 100644
--- a/src/hb-subset-cff2.cc
+++ b/src/hb-subset-cff2.cc
@@ -571,7 +571,7 @@
   return true;
 }
 
-static bool
+static inline bool
 _hb_subset_cff2 (const OT::cff2::accelerator_subset_t  &acc,
 		const char		      *data,
 		hb_subset_plan_t		*plan,