3 files changed, 33 insertions, 0 deletions
diff --git a/ext/-test-/bignum/bigzero.c b/ext/-test-/bignum/bigzero.c
new file mode 100644
index 0000000000..5181d71aab
--- /dev/null
+++ b/ext/-test-/bignum/bigzero.c
@@ -0,0 +1,16 @@
+#include "ruby.h"
+
+static VALUE
+bug_big_zero(VALUE self, VALUE length)
+{
+    long len = NUM2ULONG(length);
+    VALUE z = rb_big_new(len, 1);
+    MEMZERO(RBIGNUM_DIGITS(z), BDIGIT, len);
+    return z;
+}
+
+void
+Init_bigzero(VALUE klass)
+{
+    rb_define_singleton_method(klass, "zero", bug_big_zero, 1);
+}
diff --git a/ext/-test-/bignum/extconf.rb b/ext/-test-/bignum/extconf.rb
new file mode 100644
index 0000000000..4ced662180
--- /dev/null
+++ b/ext/-test-/bignum/extconf.rb
@@ -0,0 +1,6 @@
+$srcs = Dir[File.join($srcdir, "*.{#{SRC_EXT.join(%q{,})}}")]
+inits = $srcs.map {|s| File.basename(s, ".*")}
+inits.delete("init")
+inits.map! {|s|"X(#{s})"}
+$defs << "-DTEST_INIT_FUNCS(X)=\"#{inits.join(' ')}\""
+create_makefile("-test-/bignum")
diff --git a/ext/-test-/bignum/init.c b/ext/-test-/bignum/init.c
new file mode 100644
index 0000000000..82a159bf1d
--- /dev/null
+++ b/ext/-test-/bignum/init.c
@@ -0,0 +1,11 @@
+#include "ruby.h"
+
+#define init(n) {void Init_##n(VALUE klass); Init_##n(klass);}
+
+void
+Init_bignum(void)
+{
+    VALUE mBug = rb_define_module("Bug");
+    VALUE klass = rb_define_class_under(mBug, "Bignum", rb_cString);
+    TEST_INIT_FUNCS(init);
+}