diff --git a/CMakeLists.txt b/CMakeLists.txt
index ddf593f1a..1e45acea8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,6 +65,7 @@ option(FULL_BUILD "Include large items in the build" ON)
 option(TARGET_i386 "Enable i386 slices" ON)
 option(TARGET_x86_64 "Enable x86_64 slices" ON)
 option(DEBIAN_PACKAGING "Packaging for Debian" OFF)
+option(ENABLE_TESTS "Install in-prefix unit tests" OFF)
 
 FindDsymutil()
 
diff --git a/src/external/corecrypto b/src/external/corecrypto
index 9c0ab18af..a211468eb 160000
--- a/src/external/corecrypto
+++ b/src/external/corecrypto
@@ -1 +1 @@
-Subproject commit 9c0ab18af9105b548567494204bd0afbbe62a119
+Subproject commit a211468eb4f623148bb8c0bc84e2db2175ed5ba2