1 files changed, 1 insertions, 0 deletions

diff --git a/configure b/configure
index f92ffc5ea..c6805b0af 100755
--- a/configure
+++ b/configure
@@ -211,6 +211,7 @@ HAVE_LIST="
     alt_tree_layout
     pthread_h
     sys_mman_h
+    unistd_h
 "
 CONFIG_LIST="
     external_build