Get rid of embedding make command line

NMAKE sets MAKE to the full path name, which includes spaces by
the default installation.

ext/-test-/cxxanyargs/depend

@@ -2,9 +2,10 @@ $(TARGET_SO) $(STATIC_LIB): failure.failed
 
 failure.failed: failure.cpp cxxanyargs.o
 	$(Q)$(RUBY) -rfileutils \
-	  -e "err = IO.popen(%[$(MAKE) failure.o], err:[:child, :out], &:read)" \
+	  -e "t = ARGV.shift" \
+	  -e "err = IO.popen(ARGV, err:[:child, :out], &:read)" \
 	  -e "abort err unless /rb_define_method/ =~ err" \
-	  -e "FileUtils.touch(*ARGV)" $@
+	  -e "FileUtils.touch(t)" $@ $(MAKE) failure.o
 
 # AUTOGENERATED DEPENDENCIES START
 cxxanyargs.o: $(RUBY_EXTCONF_H)