diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 7bc7d41da42..c557aa436f2 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,8 @@
+2019-12-22  Maciej W. Rozycki  <macro@wdc.com>
+
+	* testsuite/libgomp-test-support.exp.in (GCC_UNDER_TEST): New
+	variable.
+
 2019-12-21  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* target.c (gomp_map_vars_internal): Restore 'omp declare target
diff --git a/libgomp/testsuite/libgomp-test-support.exp.in b/libgomp/testsuite/libgomp-test-support.exp.in
index 98fb442b537..6ec10c728a3 100644
--- a/libgomp/testsuite/libgomp-test-support.exp.in
+++ b/libgomp/testsuite/libgomp-test-support.exp.in
@@ -1,3 +1,5 @@
+set GCC_UNDER_TEST {@CC@}
+
 set cuda_driver_include "@CUDA_DRIVER_INCLUDE@"
 set cuda_driver_lib "@CUDA_DRIVER_LIB@"
 set hsa_runtime_lib "@HSA_RUNTIME_LIB@"