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-rw-r--r--contrib/btree_gist/btree_numeric.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/contrib/btree_gist/btree_numeric.c b/contrib/btree_gist/btree_numeric.c
index 5943483a65a..a6a03c8995b 100644
--- a/contrib/btree_gist/btree_numeric.c
+++ b/contrib/btree_gist/btree_numeric.c
@@ -1,4 +1,5 @@
#include <math.h>
+#include <float.h>
#include "btree_gist.h"
#include "btree_utils_var.h"