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-rw-r--r--ext/ffi_c/compat.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/ext/ffi_c/compat.h b/ext/ffi_c/compat.h
index 889a4be..a8fdcbe 100644
--- a/ext/ffi_c/compat.h
+++ b/ext/ffi_c/compat.h
@@ -79,6 +79,8 @@
# define RB_GC_GUARD(x) (x)
#endif
+
+/* For compatibility with ruby < 2.7 */
#ifdef HAVE_RB_GC_MARK_MOVABLE
#define ffi_compact_callback(x) .dcompact = (x),
#define ffi_gc_location(x) x = rb_gc_location(x)
@@ -88,4 +90,13 @@
#define ffi_gc_location(x)
#endif
+
+/* For compatibility with ruby < 3.0 */
+#ifndef RUBY_TYPED_FROZEN_SHAREABLE
+#define FFI_RUBY_TYPED_FROZEN_SHAREABLE 0
+#else
+#define FFI_RUBY_TYPED_FROZEN_SHAREABLE RUBY_TYPED_FROZEN_SHAREABLE
+#endif
+
+
#endif /* RBFFI_COMPAT_H */