nobu	2019-02-14 00:34:08 +0900 (Thu, 14 Feb 2019)

  New Revision: 67070

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=67070

  Log:
    Parenthesize `for` to ignore errors

  Modified files:
    trunk/win32/Makefile.sub
Index: win32/Makefile.sub
===================================================================
--- win32/Makefile.sub	(revision 67069)
+++ win32/Makefile.sub	(revision 67070)
@@ -1192,7 +1192,7 @@ ext/clean.mk ext/distclean.mk ext/realcl https://github.com/ruby/ruby/blob/trunk/win32/Makefile.sub#L1192
 	$(Q)if exist $(EXTS_MK) $(MAKE) -k -f $(EXTS_MK) top_srcdir=$(srcdir) $(*F)
 
 ext/clean gems/clean ext/distclean gems/distclean ext/realclean gems/realclean::
-		$(Q)cd $(@D) && for /R $(EXTS) %I in (.) \
+		$(Q)cd $(@D) 2>nul && (for /R $(EXTS) %I in (.) \
 		do $(Q)if exist %I\Makefile ( \
 		    cd %I && ( \
 		    call set n=%I && \
@@ -1202,11 +1202,11 @@ ext/clean gems/clean ext/distclean gems/ https://github.com/ruby/ruby/blob/trunk/win32/Makefile.sub#L1202
 		    $(MAKE) $(MFLAGS) $(@F) & \
 		    cd %CD% & \
 		    $(RMDIRS) %I \
-		) ) || @
+		))) || @
 
 ext/distclean gems/distclean ext/realclean gems/realclean::
-		$(Q)cd $(@D) && for /R $(EXTS) %I in (exts.mk*) \
-		do $(Q)(del %I & rmdir %~dpI)
+		$(Q)cd $(@D) 2>nul && (for /R $(EXTS) %I in (exts.mk*) \
+		do $(Q)(del %I & rmdir %~dpI)) || @
 		-$(Q)rmdir $(@D) 2> nul || @
 
 clean-enc distclean-enc realclean-enc:

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