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-rw-r--r--test/test_protocol.cxx2
1 files changed, 2 insertions, 0 deletions
diff --git a/test/test_protocol.cxx b/test/test_protocol.cxx
index d7ea7cd87..e80e4fe6d 100644
--- a/test/test_protocol.cxx
+++ b/test/test_protocol.cxx
@@ -8,6 +8,8 @@
#include <cppunit/ui/text/TestRunner.h>
#include <cppunit/extensions/HelperMacros.h>
+#include <unistd.h>
+
static enum ack last_error = ack(-1);
void