1 files changed, 50 insertions, 0 deletions
diff --git a/spec/ruby/optional/capi/ext/rubyspec.h b/spec/ruby/optional/capi/ext/rubyspec.h
new file mode 100644
index 0000000000..5a92645785
--- /dev/null
+++ b/spec/ruby/optional/capi/ext/rubyspec.h
@@ -0,0 +1,50 @@
+#ifndef RUBYSPEC_H
+#define RUBYSPEC_H
+
+/* Define convenience macros similar to the mspec
+ * guards to assist with version incompatibilities. */
+
+#include <ruby.h>
+#include <ruby/version.h>
+
+/* copied from ext/-test-/cxxanyargs/cxxanyargs.cpp */
+#if 0 /* Ignore deprecation warnings */
+
+#elif defined(_MSC_VER)
+#pragma warning(disable : 4996)
+
+#elif defined(__INTEL_COMPILER)
+#pragma warning(disable : 1786)
+
+#elif defined(__clang__)
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+
+#elif defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
+#elif defined(__SUNPRO_CC)
+#pragma error_messages (off,symdeprecated)
+
+#else
+// :FIXME: improve here for your compiler.
+
+#endif
+
+#define RUBY_VERSION_BEFORE(major,minor) \
+  ((RUBY_API_VERSION_MAJOR < (major)) || \
+   (RUBY_API_VERSION_MAJOR == (major) && RUBY_API_VERSION_MINOR < (minor)))
+#define RUBY_VERSION_SINCE(major,minor) (!RUBY_VERSION_BEFORE(major, minor))
+
+#if RUBY_VERSION_SINCE(4, 1)
+#define RUBY_VERSION_IS_4_1
+#endif
+
+#if RUBY_VERSION_SINCE(4, 0)
+#define RUBY_VERSION_IS_4_0
+#endif
+
+#if RUBY_VERSION_SINCE(3, 4)
+#define RUBY_VERSION_IS_3_4
+#endif
+
+#endif