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-rw-r--r--ext/json/generator/generator.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/ext/json/generator/generator.h b/ext/json/generator/generator.h
index ddd1aa8a309..9277682603a 100644
--- a/ext/json/generator/generator.h
+++ b/ext/json/generator/generator.h
@@ -149,4 +149,14 @@ static VALUE cState_depth_set(VALUE self, VALUE depth);
static FBuffer *cState_prepare_buffer(VALUE self);
static const rb_data_type_t JSON_Generator_State_type;
+#ifndef ZALLOC
+#define ZALLOC(type) ((type *)ruby_zalloc(sizeof(type)))
+static inline void *ruby_zalloc(size_t n)
+{
+ void *p = ruby_xmalloc(n);
+ memset(p, 0, n);
+ return p;
+}
+#endif
+
#endif