ext/etc/mkconstants.rb in etc-1.0.0 vs ext/etc/mkconstants.rb in etc-1.0.1

@@ -64,11 +64,19 @@
     next if pat !~ name
     yield name
   }
 end
 
-ERB.new(<<'EOS', nil, '%').def_method(Object, "gen_const_decls")
+erb_new = lambda do |src, safe, trim|
+  if ERB.instance_method(:initialize).parameters.assoc(:key) # Ruby 2.6+
+    ERB.new(src, trim_mode: trim)
+  else
+    ERB.new(src, safe, trim)
+  end
+end
+
+erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_const_decls")
 % each_const {|name, default_value|
 #if !defined(<%=name%>)
 # if defined(HAVE_CONST_<%=name.upcase%>)
 #  define <%=name%> <%=name%>
 %if default_value
@@ -78,27 +86,27 @@
 # endif
 #endif
 % }
 EOS
 
-ERB.new(<<'EOS', nil, '%').def_method(Object, "gen_const_defs")
+erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_const_defs")
 % each_const {|name, default_value|
 #if defined(<%=name%>)
 %   if comment = COMMENTS[name]
     /* <%=comment%> */
 %   end
     rb_define_const(mod, <%=c_str name.sub(/\A_*/, '')%>, INTEGER2NUM(<%=name%>));
 #endif
 % }
 EOS
 
-header_result = ERB.new(<<'EOS', nil, '%').result(binding)
+header_result = erb_new.call(<<'EOS', nil, '%').result(binding)
 /* autogenerated file */
 
 <%= gen_const_decls %>
 EOS
 
-result = ERB.new(<<'EOS', nil, '%').result(binding)
+result = erb_new.call(<<'EOS', nil, '%').result(binding)
 /* autogenerated file */
 
 #ifdef HAVE_LONG_LONG
 #define INTEGER2NUM(n) \
     (FIXNUM_MAX < (n) ? ULL2NUM(n) : \