Makefile.am: Automatically remove ./tmp in the VLC-release.app target.

Makefile.am

@@ -351,13 +351,11 @@ if HAVE_DARWIN
 noinst_DATA = VLC.app
 # VLC-release.app is the old VLC.app target
 VLC-release.app: vlc
-	( cd  src && make  )
+	( cd  src && make install )
 	@if test -e "$(top_builddir)/tmp"; then \
-	  echo "Error: please remove $(top_builddir)/tmp, it is in the way"; \
-	  false; \
-	else \
-	  echo "OK."; mkdir -p "$(top_builddir)/tmp/extras/package/macosx"; \
-	fi
+	  rm -Rf $(top_builddir)/tmp \
+	fi \
+    mkdir -p "$(top_builddir)/tmp/extras/package/macosx"; \
 	rm -Rf $(top_builddir)/VLC-release.app
 	cp -R $(srcdir)/extras/package/macosx/vlc.xcodeproj $(top_builddir)/tmp/extras/package/macosx/
 	cp -R $(srcdir)/extras/package/macosx/Resources $(top_builddir)/tmp/extras/package/macosx