Separate miniruby from dmyext.c

common.mk

@@ -78,7 +78,7 @@ NORMALMAINOBJ = main.$(OBJEXT)
 MAINOBJ       = $(NORMALMAINOBJ)
 DLDOBJS	      = $(INITOBJS)
 EXTSOLIBS     =
-MINIOBJS      = $(ARCHMINIOBJS) miniinit.$(OBJEXT) dmyext.$(OBJEXT)
+MINIOBJS      = $(ARCHMINIOBJS) miniinit.$(OBJEXT)
 ENC_MK        = enc.mk
 MAKE_ENC      = -f $(ENC_MK) V="$(V)" UNICODE_HDR_DIR="$(UNICODE_HDR_DIR)" \
 		RUBY="$(BOOTSTRAPRUBY)" MINIRUBY="$(BOOTSTRAPRUBY)" $(mflags)
@@ -412,7 +412,7 @@ programs: $(PROGRAM) $(WPROGRAM) $(arch)-fake.rb
 
 $(PREP): $(MKFILES)
 
-miniruby$(EXEEXT): config.status $(ALLOBJS) $(ARCHFILE)
+miniruby$(EXEEXT): config.status $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(ARCHFILE)
 
 objs: $(ALLOBJS)
 

dmyenc.c

@@ -1,7 +1,16 @@
-// This file is used only by ruby.
-// miniruby does not use this Init_enc. Instead, "miniinit.c" provides Init_enc, which defines only the builtin encodings.
-// Dynamically-linked ruby uses this Init_enc, which requires "enc/encdb.so" to load the builtin encodings and set up the optional encodings.
-// Statically-linked ruby does not use this Init_enc. Instead, "enc/encinit.c" (which is a generated file) defines Init_enc, which activates the encodings.
+// This file is used by dynamically-linked ruby, which has no
+// statically-linked encodings other than the builtin encodings.
+//
+// - miniruby does not use this Init_enc. Instead, "miniinit.c"
+//   provides Init_enc, which defines only the builtin encodings.
+//
+// - Dynamically-linked ruby uses this Init_enc, which requires
+//   "enc/encdb.so" to load the builtin encodings and set up the
+//   optional encodings.
+//
+// - Statically-linked ruby does not use this Init_enc. Instead,
+//   "enc/encinit.c" (which is a generated file) defines Init_enc,
+//   which activates the encodings.
 
 #define require(name) ruby_require_internal(name, (unsigned int)sizeof(name)-1)
 int ruby_require_internal(const char *, int);

dmyext.c

@@ -1,7 +1,16 @@
-// This file is used by dynamically-linked ruby and miniruby.
-// miniruby uses this Init_ext, which does nothing. It does not support require'ing extension libraries.
-// Dynamically-linked ruby uses this Init_ext, which does nothing. It loads extension libraries by dlopen, etc.
-// Statically-linked ruby does not use this Init_ext. Instead, "ext/extinit.c" (which is a generated file) defines Init_ext, which activates the (statically-linked) extension libraries.
+// This file is used by dynamically-linked ruby, which has no
+// statically-linked extension libraries.
+//
+// - miniruby does not use this Init_ext. Instead, "miniinit.c"
+//   provides Init_enc, which does nothing too. It does not support
+//   require'ing extension libraries.
+//
+// - Dynamically-linked ruby uses this Init_ext, which does
+//   nothing. It loads extension libraries by dlopen, etc.
+//
+// - Statically-linked ruby does not use this Init_ext. Instead,
+//   "ext/extinit.c" (which is a generated file) defines Init_ext,
+//   which activates the (statically-linked) extension libraries.
 
 void
 Init_ext(void)

miniinit.c

@@ -48,6 +48,12 @@ Init_enc(void)
     rb_encdb_alias("ASCII", "US-ASCII");
 }
 
+/* miniruby does not support dynamic loading. */
+void
+Init_ext(void)
+{
+}
+
 #include "mini_builtin.c"
 
 void