diff --git a/gnu-compilers-hpc.changes b/gnu-compilers-hpc.changes
index fbdb42d..7ced4c3 100644
--- a/gnu-compilers-hpc.changes
+++ b/gnu-compilers-hpc.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Jun 23 06:52:49 UTC 2021 - Egbert Eich <eich@suse.com>
+
+- Add build support for gcc11 to HPC build (jsc#SLE-18780,
+  jsc#SLE-18781, jsc#SLE-18782).
+
 -------------------------------------------------------------------
 Thu Jul 23 16:13:13 UTC 2020 - Egbert Eich <eich@suse.com>
 
diff --git a/gnu-compilers-hpc.spec b/gnu-compilers-hpc.spec
index 5918708..a409201 100644
--- a/gnu-compilers-hpc.spec
+++ b/gnu-compilers-hpc.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package gnu
 #
-# Copyright (c) 2020 SUSE LLC
+# 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
@@ -51,6 +51,10 @@ ExclusiveArch:  do_not_build
 %define c_f_ver 10
 %endif
 
+%if "%flavor" == "gnu11-hpc"
+%define c_f_ver 11
+%endif
+
 # Keep in sync with macros.hpc-gnu
 # ab >= 40 - version: a.b to accompodate for old gcc version scheme of gcc < 5
 %global hpc_gnu_bin_version %{?c_f_ver:-%(v=%c_f_ver; [ $v -lt 40 ] && echo $v ||