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-rw-r--r--ext/etc/extconf.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/ext/etc/extconf.rb b/ext/etc/extconf.rb
index 435fbe7f3d..b6ae7700da 100644
--- a/ext/etc/extconf.rb
+++ b/ext/etc/extconf.rb
@@ -47,6 +47,11 @@ if !File.exist?("#{srcdir}/depend")
%x[#{RbConfig.ruby} #{srcdir}/mkconstants.rb -o #{srcdir}/constdefs.h]
end
+decl = [
+ "void rb_deprecate_constant(VALUE, const char *);",
+]
+have_func('rb_deprecate_constant(Qnil, "None")', [decl])
+
$distcleanfiles << "constdefs.h"
create_makefile("etc")