Fix dependencies in spec-file, automatically set major and minor-version of installed gnome-shell in metadata.json.

So the extension works in rawhide after repackaging without the need to manually fix this.

gnome-shell-extension-panel-osd.spec

@@ -2,6 +2,8 @@
 %global uuid panel-osd@berend.de.schouwer.gmail.com
 %global github jenslody-gnome-shell-extension-panel-osd
 %global checkout git%{git}
+%global gs_version %(dnf info gnome-shell | grep Version | cut -d \":\" -f 2 | cut -d \" \" -f 2)
+%global gs_major_version %(echo %{gs_version} | cut -d \".\" -f 1-2)
 
 Name:           gnome-shell-extension-panel-osd
 Version:        1
@@ -17,7 +19,7 @@ Source0:        https://github.com/jenslody/gnome-shell-extension-panel-osd/tarb
 BuildArch:      noarch
 
 BuildRequires:  autoconf >= 2.53, automake >= 1.9, glib2-devel, gnome-common >= 3.10.0, intltool >= 0.25
-Requires:       gnome-shell >= 3.10.0
+Requires:       gnome-shell-extension-common >= 3.10.0
 
 
 %description
@@ -28,6 +30,7 @@ messages at any (configurable) place on the (primary) monitor.
 %setup -q -n %{github}-%{git}
 
 %build
+sed -i "s/^\"shell-version\":.*/\"shell-version\": [ \"%{gs_version}\", \"%{gs_major_version}\" ],/g" data/metadata.json.in
 NOCONFIGURE=1 ./autogen.sh
 %configure --prefix=%{_prefix}
 make %{?_smp_mflags}