diff --git a/Makefile b/Makefile
index c9cc76b..19a2cdf 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,9 @@ EXTENSION = toastinfo
 DATA = toastinfo--1.sql
 REGRESS = toastinfo
 
+ifndef PG_CONFIG
 PG_CONFIG = pg_config
+endif
+
 PGXS = $(shell $(PG_CONFIG) --pgxs)
 include $(PGXS)
diff --git a/SPECS/PGDG/README b/SPECS/PGDG/README
new file mode 100644
index 0000000..53ab303
--- /dev/null
+++ b/SPECS/PGDG/README
@@ -0,0 +1,9 @@
+The SPEC file found here is intended to be
+used with PGDG PostgreSQL packages. To build a
+toastinfo package, you have to specify the target
+PostgreSQL PGDG release and the installation directory,
+where the packages can be found.
+
+Example:
+
+rpmbuild -D"pgdgversion 10" -D "pginstdir /usr/pgsql-10/" -ba toastinfo.spec
diff --git a/SPECS/PGDG/toastinfo.spec b/SPECS/PGDG/toastinfo.spec
new file mode 100644
index 0000000..75f8838
--- /dev/null
+++ b/SPECS/PGDG/toastinfo.spec
@@ -0,0 +1,42 @@
+Name:		toastinfo
+Version:	1.0
+Release:	1%{?dist}
+Summary:	A PostgreSQL extension module to view toast value information.
+
+Group:		database
+License:	BSD
+URL:		https://github.com/credativ/toastinfo
+Source0:	https://github.com/credativ/toastinfo/archive/v%{version}.tar.gz
+
+BuildRequires:	postgresql%{pgdgversion}-devel
+Requires:	postgresql%{pgdgversion}
+
+%description
+This PostgreSQL extension exposes the internal storage structure of variable-length datatypes, called varlena.
+
+%prep
+%setup -q
+
+
+%build
+PG_CONFIG=%{pginstdir}/bin/pg_config USE_PGXS=1 make %{?_smp_mflags}
+
+%install
+rm -rf $RPM_BUILD_ROOT
+PG_CONFIG=%{pginstdir}/bin/pg_config USE_PGXS=1 make install DESTDIR=$RPM_BUILD_ROOT
+
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+
+%files
+%defattr(-,root,root,-)
+%{pginstdir}/lib/toastinfo.so
+%{pginstdir}/share/extension/toastinfo--1.sql
+%{pginstdir}/share/extension/toastinfo.control
+
+
+%changelog
+* Tue Apr 03 2018 - Bernd Helmle <bernd.helmle@credativ.de> 1.0-1
+- Upstream release 1.0