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-rwxr-xr-xext/rpatricia/extconf.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/rpatricia/extconf.rb b/ext/rpatricia/extconf.rb
index 18bb7a7..f8753af 100755
--- a/ext/rpatricia/extconf.rb
+++ b/ext/rpatricia/extconf.rb
@@ -1,5 +1,6 @@
 #!/usr/bin/env ruby
 require "mkmf"
 
+have_func("ruby_xcalloc")
 have_func("rb_str_set_len", "ruby.h")
 create_makefile("rpatricia")