libvisual: po: Fix default for $(DOMAIN), was empty before

This is similar to what we alredy have in place with libvisual-plugins.

Author: hartwork

libvisual/Makefile.am

@@ -23,8 +23,8 @@ stamp-gc-h: config.status
 	cd $(top_builddir) && $(SHELL) ./config.status libvisual/lvconfig.h
 	echo timestamp > stamp-gc-h
 
-EXTRA_DIST = Doxyfile config.rpath libvisual.pc.in
+EXTRA_DIST = Doxyfile config.rpath libvisual.pc.in po/Makevars.in
 
-DISTCLEANFILES = libvisual/lvconfig.h $(PKG_CONFIG_FILE)
+DISTCLEANFILES = libvisual/lvconfig.h $(PKG_CONFIG_FILE) po/Makevars
 
 ACLOCAL_AMFLAGS = -I m4

libvisual/configure.ac

@@ -819,6 +819,7 @@ esac
 
 AC_CONFIG_FILES([
 m4/Makefile
+po/Makevars
 po/Makefile.in
 Makefile
 libvisual.pc

libvisual/po/Makevars renamed to libvisual/po/Makevars.in

@@ -1,7 +1,7 @@
 # Makefile variables for PO directory in any package using GNU gettext.
 
 # Usually the message domain is the same as the package name.
-DOMAIN = $(GETTEXT_PACKAGE)
+DOMAIN = @GETTEXT_PACKAGE@
 
 # These two variables depend on the location of this directory.
 subdir = po