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-rw-r--r--doc/manual/Makefile.kmk6
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/manual/Makefile.kmk b/doc/manual/Makefile.kmk
index 884aebe9..4411d067 100644
--- a/doc/manual/Makefile.kmk
+++ b/doc/manual/Makefile.kmk
@@ -317,7 +317,11 @@ $(foreach f,$(VBOX_MANUAL_LANGUAGES),$(VBOX_PATH_MANUAL_OUTBASE)/$f/user_ChangeL
$(QUIET)$(SED) -e '1,/<!--\$$VIRTUALBOX_CHANGELOG_IMPL-->/!d' \
-e 's/<!--\$$VIRTUALBOX_CHANGELOG_IMPL-->//' \
--output $@ $@.tmp
- $(QUIET)$(SED) -e 's/<?xml version=\"1.0\" encoding=\"UTF-8\"?>//g' --append $@ $(VBOX_PATH_MANUAL_SRC)/user_ChangeLogImpl.xml
+ $(QUIET)var=`$(SED) -n '/!--\$$VIRTUALBOX_CHANGELOG_IMPL-->/p' $<`; \
+ test -n "$${var}" && \
+ $(SED) -e 's/<?xml version=\"1.0\" encoding=\"UTF-8\"?>//g' \
+ --append $@ $(VBOX_PATH_MANUAL_SRC)/user_ChangeLogImpl.xml; \
+ true
$(QUIET)$(SED) -e '/<!--\$$VIRTUALBOX_CHANGELOG_IMPL-->/,$$!d' \
-e 's/<!--\$$VIRTUALBOX_CHANGELOG_IMPL-->//' --append $@ $@.tmp