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-rw-r--r--src/include/c.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/include/c.h b/src/include/c.h
index 58b75440c13..47c5e8db112 100644
--- a/src/include/c.h
+++ b/src/include/c.h
@@ -295,6 +295,10 @@ typedef unsigned long long int uint64;
#define UINT64CONST(x) ((uint64) x)
#endif
+/* Max value of size_t might be missing if we don't have stdint.h */
+#ifndef SIZE_MAX
+#define SIZE_MAX ((size_t) -1)
+#endif
/* Select timestamp representation (float8 or int64) */
#ifdef USE_INTEGER_DATETIMES