--- a/config/Makefile.in	
+++ a/config/Makefile.in	
@@ -554,7 +554,7 @@ CORE_SRCS += $(OPENFT_SRCS)
 endif
 
 ifeq ("$(GD)", "yes")
-  GD_LIBS_flags=-cclib "-lgd $(GD_LIBS)" -ccopt "$(GD_LDFLAGS)"
+  GD_LIBS_flags=-cclib "-lgd -lpng15 $(GD_LIBS)" -ccopt "$(GD_LDFLAGS)"
   ifneq ("$(GD_STATIC_LIBS)", "")
     GD_STATIC_LIBS_opt=-cclib "-lgd $(GD_STATIC_LIBS)" -ccopt "$(GD_LDFLAGS)"
   endif