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-rw-r--r--src/idxset.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/idxset.c b/src/idxset.c
index ba740250..aceb566a 100644
--- a/src/idxset.c
+++ b/src/idxset.c
@@ -1,3 +1,7 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>