egcpool_extended_gcluster: a warning

src/lib/egcpool.h

@@ -252,6 +252,7 @@ cell_egc_idx(const cell* c){
   return c->gcluster & 0x00fffffflu;
 }
 
+// only applies to complex cells, do not use on simple cells
 __attribute__ ((__returns_nonnull__)) static inline const char*
 egcpool_extended_gcluster(const egcpool* pool, const cell* c) {
   uint32_t idx = cell_egc_idx(c);

src/lib/render.c

@@ -510,8 +510,7 @@ term_putc(FILE* out, const egcpool* e, const cell* c){
       return -1;
     }
   }else{
-    const char* ext = egcpool_extended_gcluster(e, c);
-    if(ncfputs(ext, out) == EOF){
+    if(ncfputs(egcpool_extended_gcluster(e, c), out) == EOF){
       return -1;
     }
   }