Fix the version in .pc files

Tilix requires 3.8.4 to build, but the .pc files still had 3.8.3 in
them.

https://github.com/gtkd-developers/GtkD/issues/259

gtkd.spec

@@ -5,7 +5,7 @@
 
 Name:           gtkd
 Version:        3.8.4
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        D binding and OO wrapper of GTK+
 
 License:        LGPLv3+ with exceptions
@@ -68,6 +68,10 @@ Active l'autocompletion pour pour la bibliothèque gtkd dans geany (IDE)
 %prep
 %setup -q -n GtkD-%{version}
 
+# Fix the version in .pc files
+# https://github.com/gtkd-developers/GtkD/issues/259
+sed -i -e 's/^GTKD_VERSION=3\.8\.3/GTKD_VERSION=3.8.4/g' GNUmakefile
+
 # temp geany config directory for allow geany to generate tags
 mkdir geany_config
 
@@ -125,6 +129,9 @@ install -m0644 gtkd.d.tags %{buildroot}%{_datadir}/geany/tags/
 %{_datadir}/geany/tags/gtkd.d.tags
 
 %changelog
+* Fri Jan 04 2019 Kalev Lember <klember@redhat.com> - 3.8.4-2
+- Fix the version in .pc files
+
 * Fri Jan 04 2019 Kalev Lember <klember@redhat.com> - 3.8.4-1
 - Update to 3.8.4
 - Drop ldconfig scriptlets