Makefile.in: verify-static-library

* Makefile.in (verify-static-library): separate from LIBRUBY_A.
  no check every times by default.

* lib/mkmf.rb (try_link): remove debugging symbol directory after
  linking, instead of try_do.

* lib/mkmf.rb (try_link): bccwin32 support has been removed long
  ago.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57722 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Makefile.in

@@ -234,9 +234,11 @@ $(LIBRUBY_A):
 		$(ECHO) linking static-library $@
 		$(Q) $(AR) $(ARFLAGS) $@ $(LIBRUBY_A_OBJS) $(INITOBJS)
 		@-$(RANLIB) $@ 2> /dev/null || true
+
+verify-static-library: $(LIBRUBY_A)
 		$(ECHO) verifying static-library $@
 		@$(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(LIBRUBY_A) $(MAINLIBS) $(EXTLIBS) $(LIBS) $(OUTFLAG)conftest$(EXEEXT)
-		@$(RM) conftest$(EXEEXT) conftest.c
+		@$(RMALL) conftest$(EXEEXT) conftest.c conftest.dSYM
 
 $(LIBRUBY_SO):
 		@-$(PRE_LIBRUBY_UPDATE)

lib/mkmf.rb

@@ -464,7 +464,6 @@ MSG
       xsystem(command, *opts)
     ensure
       log_src(src)
-      MakeMakefile.rm_rf "#{CONFTEST}.dSYM"
     end
   end
 
@@ -556,7 +555,8 @@ MSG
   def try_link(src, opt="", *opts, &b)
     try_link0(src, opt, *opts, &b)
   ensure
-    MakeMakefile.rm_f "#{CONFTEST}*", "c0x32*"
+    MakeMakefile.rm_f "#{CONFTEST}*"
+    MakeMakefile.rm_rf "#{CONFTEST}.dSYM"
   end
 
   # Returns whether or not the +src+ can be compiled as a C source.  +opt+ is