Fix compilation when using gcc 9:

  - Include header file for atomic when needed.
  - Use normal function template instead of abbreviated function template.

1 files changed, 1 insertions, 0 deletions

diff --git a/vespalib/src/tests/executor/threadstackexecutor_test.cpp b/vespalib/src/tests/executor/threadstackexecutor_test.cpp
index e61dc071b62..688d98ff032 100644
--- a/vespalib/src/tests/executor/threadstackexecutor_test.cpp
+++ b/vespalib/src/tests/executor/threadstackexecutor_test.cpp
@@ -4,6 +4,7 @@
 #include <vespa/vespalib/util/threadstackexecutor.h>
 #include <vespa/vespalib/util/backtrace.h>
 #include <vespa/vespalib/util/size_literals.h>
+#include <atomic>
 #include <thread>
 
 using namespace vespalib;