Minor change for OPENFHE_REQUIRED_VERSION

Author: dsuponitskiy-duality

CMakeLists.txt

@@ -9,7 +9,12 @@ set(OPENFHE_PYTHON_VERSION_TWEAK 0)
 set(OPENFHE_PYTHON_VERSION ${OPENFHE_PYTHON_VERSION_MAJOR}.${OPENFHE_PYTHON_VERSION_MINOR}.${OPENFHE_PYTHON_VERSION_PATCH}.${OPENFHE_PYTHON_VERSION_TWEAK})
 
 # OpenFHE version can be specified externally (-DOPENFHE_REQUIRED_VERSION=1.3.0)
-set(OPENFHE_REQUIRED_VERSION "1.3.0" CACHE STRING "Required OpenFHE version")
+if(NOT DEFINED OPENFHE_REQUIRED_VERSION)
+    set(OPENFHE_REQUIRED_VERSION "1.3.0" CACHE STRING "Required OpenFHE version")
+else()
+    # User provided OPENFHE_REQUIRED_VERSION via -D
+    message(STATUS "Using user-specified OpenFHE version: ${OPENFHE_REQUIRED_VERSION}")
+endif()
 
 set(CMAKE_CXX_STANDARD 17)
 option( BUILD_STATIC "Set to ON to include static versions of the library" OFF)