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-rw-r--r--src/sys2.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/sys2.h b/src/sys2.h
index b7afd5822..b39ef9907 100644
--- a/src/sys2.h
+++ b/src/sys2.h
@@ -527,6 +527,10 @@ enum
# define SIZE_MAX TYPE_MAXIMUM (size_t)
#endif
+#ifndef UINTMAX_MAX
+# define UINTMAX_MAX TYPE_MAXIMUM (uintmax_t)
+#endif
+
#ifndef OFF_T_MIN
# define OFF_T_MIN TYPE_MINIMUM (off_t)
#endif