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-rw-r--r--ept/popcon/maint/popconindexer.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/ept/popcon/maint/popconindexer.cc b/ept/popcon/maint/popconindexer.cc
index f0e39ad..a8dea69 100644
--- a/ept/popcon/maint/popconindexer.cc
+++ b/ept/popcon/maint/popconindexer.cc
@@ -7,6 +7,7 @@
#include <tagcoll/diskindex/mmap.h>
+#include <unistd.h>
#include <set>
#include <string>
#include <cstdio>