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-rw-r--r--include/ruby/ruby.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
index 54ac74e7ee..a05651ac3b 100644
--- a/include/ruby/ruby.h
+++ b/include/ruby/ruby.h
@@ -139,6 +139,15 @@ typedef char ruby_check_sizeof_voidp[SIZEOF_VOIDP == sizeof(void*) ? 1 : -1];
#endif
#endif
+#ifndef PRIdPTR
+#define PRIdPTR PRI_PTR_PREFIX"d"
+#define PRIiPTR PRI_PTR_PREFIX"i"
+#define PRIoPTR PRI_PTR_PREFIX"o"
+#define PRIuPTR PRI_PTR_PREFIX"u"
+#define PRIxPTR PRI_PTR_PREFIX"x"
+#define PRIXPTR PRI_PTR_PREFIX"X"
+#endif
+
#define RUBY_PRI_VALUE_MARK "\v"
#if defined PRIdPTR && !defined PRI_VALUE_PREFIX
#define PRIdVALUE PRIdPTR