8081858: make dist-clean does not delete all log files

Reviewed-by: erikj

make/Init.gmk

@@ -240,6 +240,11 @@ else # HAS_SPEC=true
     override BUILD_LOG_PIPE :=
   endif
 
+  ifeq ($(filter dist-clean, $(SEQUENTIAL_TARGETS)), dist-clean)
+    # We can't have a log file if we're about to remove it.
+    override BUILD_LOG_PIPE :=
+  endif
+
   ifeq ($(OUTPUT_SYNC_SUPPORTED), true)
     OUTPUT_SYNC_FLAG := -O$(OUTPUT_SYNC)
   endif

make/Main.gmk

@@ -1107,7 +1107,8 @@ clean-test: clean-test-results clean-test-support
 # directory was created by configure and now becomes empty, remove it as well.
 dist-clean: clean
 	($(CD) $(OUTPUTDIR) && \
-	    $(RM) -r *spec.gmk $(CONFIGURESUPPORT_OUTPUTDIR) Makefile compare.sh ide)
+	    $(RM) -r *spec.gmk $(CONFIGURESUPPORT_OUTPUTDIR) Makefile compare.sh ide \
+	    configure.log* build.log*)
 	$(if $(filter $(CONF_NAME),$(notdir $(OUTPUTDIR))), \
 	  if test "x`$(LS) $(OUTPUTDIR)`" != x; then \
 	    $(ECHO) "Warning: Not removing non-empty configuration directory for '$(CONF_NAME)'" ; \