version_check_feature() added to check for compile-time options at run-time
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 19d1a2a..8b595cf 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -60,6 +60,7 @@
      threading.c
      timing.c
      version.c
+     version_features.c
      x509.c
      x509_crt.c
      x509_crl.c