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-rw-r--r--ruby_assert.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/ruby_assert.h b/ruby_assert.h
new file mode 100644
index 0000000000..fa15da1e25
--- /dev/null
+++ b/ruby_assert.h
@@ -0,0 +1,15 @@
+#include "ruby/assert.h"
+
+#if !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)
+/* C89 compilers are required to support strings of only 509 chars. */
+/* can't use RUBY_ASSERT for such compilers. */
+#include <assert.h>
+#else
+#undef assert
+#define assert RUBY_ASSERT
+#endif
+
+#ifdef NDEBUG
+ #undef RUBY_NDEBUG
+ #define RUBY_NDEBUG 1
+#endif