Rename PRISM_FILES as PRISM_OBJS

Author: nobu

common.mk

@@ -6,7 +6,7 @@ bin: $(PROGRAM) $(WPROGRAM)
 lib: $(LIBRUBY)
 dll: $(LIBRUBY_SO)
 
-.SUFFIXES: .rbinc .rbbin .rb .inc .h .c .y .i .$(ASMEXT) .$(DTRACE_EXT)
+.SUFFIXES: .rbinc .rbbin .rb .inc .h .c .y .i .$(ASMEXT) .$(DTRACE_EXT) .$(OBJEXT)
 
 # V=0 quiet, V=1 verbose.  other values don't work.
 V = 0
@@ -85,7 +85,7 @@ MAKE_ENC      = -f $(ENC_MK) V="$(V)" UNICODE_HDR_DIR="$(UNICODE_HDR_DIR)" \
 
 PRISM_BUILD_DIR = prism
 
-PRISM_FILES = prism/api_node.$(OBJEXT) \
+PRISM_OBJS    = prism/api_node.$(OBJEXT) \
 		prism/api_pack.$(OBJEXT) \
 		prism/diagnostic.$(OBJEXT) \
 		prism/encoding.$(OBJEXT) \
@@ -188,7 +188,7 @@ COMMONOBJS    = \
 		vm_sync.$(OBJEXT) \
 		vm_trace.$(OBJEXT) \
 		weakmap.$(OBJEXT) \
-		$(PRISM_FILES) \
+		$(PRISM_OBJS) \
 		$(YJIT_OBJ) \
 		$(ZJIT_OBJ) \
 		$(JIT_OBJ) \
@@ -199,7 +199,7 @@ COMMONOBJS    = \
 		$(BUILTIN_TRANSOBJS) \
 		$(MISSING)
 
-$(PRISM_FILES): $(PRISM_BUILD_DIR)/.time $(PRISM_BUILD_DIR)/util/.time
+$(PRISM_OBJS): $(PRISM_BUILD_DIR)/.time $(PRISM_BUILD_DIR)/util/.time
 
 $(PRISM_BUILD_DIR)/.time $(PRISM_BUILD_DIR)/util/.time:
 	$(Q) $(MAKEDIRS) $(@D)