Index: modules/gui/qt4/Modules.am
===================================================================
--- modules/gui/qt4/Modules.am  (revision 19342)
+++ modules/gui/qt4/Modules.am  (working copy)
@@ -104,8 +104,7 @@
 $(UIH): %.h: %.ui
        mkdir -p -- ui
        @echo "$(UIC) $< -> $@"
-       rm -f $@
-       echo "#define Q_(a,b) QString::fromUtf8(_(a))" > $@
+       echo "#define Q_(a,b) QString::fromUtf8(_(a))" >> $@
        $(UIC) -tr "Q_" $< >> $@
        sed -i -e 's/Q_(\"_(\\\"\(.*\)\\\")"/Q_("\1"/' $@