diff --git a/gsl.changes b/gsl.changes
index 14d791d..b21b3d9 100644
--- a/gsl.changes
+++ b/gsl.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Sat Feb  6 08:08:30 UTC 2021 - Egbert Eich <eich@suse.com>
+
+- Add support for gcc8 and gcc9 builds for HPC (jsc#SLE-7766,
+  jsc#SLE-8604).
+- Add build support for gcc10 to HPC build (bsc#1174439).
+
 -------------------------------------------------------------------
 Fri Nov 15 09:59:28 UTC 2019 - Christian Goll <cgoll@suse.com>
 
diff --git a/gsl.spec b/gsl.spec
index 702fb48..293263d 100644
--- a/gsl.spec
+++ b/gsl.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package gsl
 #
-# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -49,6 +49,34 @@ ExclusiveArch:  do_not_build
 %bcond_without hpc
 %endif
 
+%if "%{flavor}" == "gnu7-hpc"
+%define compiler_family gnu
+%define c_f_ver 7
+%define manext %{nil}
+%bcond_without hpc
+%endif
+
+%if "%{flavor}" == "gnu8-hpc"
+%define compiler_family gnu
+%define c_f_ver 8
+%define manext %{nil}
+%bcond_without hpc
+%endif
+
+%if "%{flavor}" == "gnu9-hpc"
+%define compiler_family gnu
+%define c_f_ver 9
+%define manext %{nil}
+%bcond_without hpc
+%endif
+
+%if "%{flavor}" == "gnu10-hpc"
+%define compiler_family gnu
+%define c_f_ver 10
+%define manext %{nil}
+%bcond_without hpc
+%endif
+
 %if %{without hpc}
 %if 0%{!?package_name:1}
 %define package_name  %{pname}