[gnome-applets] window-picker: fix distcheck

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 0055671e29fc38f1cbe913fc5a2d28d135ec69a0
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Oct 2 23:13:32 2017 +0300

    window-picker: fix distcheck

 windowpicker/data/Makefile.am |   18 +++++++++++++-----
 1 files changed, 13 insertions(+), 5 deletions(-)
---
diff --git a/windowpicker/data/Makefile.am b/windowpicker/data/Makefile.am
index 4eb7d79..cf0b0a8 100644
--- a/windowpicker/data/Makefile.am
+++ b/windowpicker/data/Makefile.am
@@ -10,11 +10,18 @@ $(applet_in_files): $(applet_in_files).in Makefile
        -e "s|\@VERSION\@|$(PACKAGE_VERSION)|" \
        $< > $@
 
-gsettings_file = org.gnome.gnome-applets.window-picker-applet.gschema.xml
-gsettings_SCHEMAS = $(gsettings_file)
+gsettings_schemas_in_in = \
+       org.gnome.gnome-applets.window-picker-applet.gschema.xml.in.in \
+       $(NULL)
 
 @INTLTOOL_XML_NOMERGE_RULE@
 
+gsettings_schemas_in = $(gsettings_schemas_in_in:.xml.in.in=.xml.in)
+gsettings_schemas = $(gsettings_schemas_in:.xml.in=.xml)
+
+%.gschema.xml.in: %.gschema.xml.in.in Makefile
+       $(AM_V_GEN) $(SED) -e 's^\@GETTEXT_PACKAGE\@^$(GETTEXT_PACKAGE)^g' < $< > $@
+
 $(gsettings_file).in: $(gsettings_file).in.in
        sed \
          -e "s|\@GETTEXT_PACKAGE\@|$(GETTEXT_PACKAGE)|" \
@@ -26,12 +33,13 @@ $(gsettings_file).in: $(gsettings_file).in.in
 
 EXTRA_DIST = \
        org.gnome.applets.WindowPicker.panel-applet.in.in \
-       $(gsettings_file).in.in
+       $(gsettings_schemas_in_in) \
+       $(NULL)
 
 CLEANFILES = $(applet_DATA) \
        $(applet_DATA).in \
-       $(gsettings_file).in \
-       $(gsettings_file) \
+       $(gsettings_schemas_in) \
+       $(gsettings_schemas) \
        *.gschema.valid
 
 -include $(top_srcdir)/git.mk