diff --git a/cmake/options.cmake b/cmake/options.cmake
index 8a2c21e..c89fd25 100644
--- a/cmake/options.cmake
+++ b/cmake/options.cmake
@@ -23,6 +23,11 @@ option(ANALYZE_DATAFLOW     "Clang dynamic analyzer: general dynamic dataflow an
 option(WARNINGS_ARE_ERRORS  "Treat warnings as errors"                                      OFF)
 option(WARNINGS_ANSI_ISO    "Issue all the mandatory diagnostics Listed in C standard"      ON)
 
+option(CFGDIR "Configuration file directory"                                      OFF)
+if(CFGDIR)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DCFG=${CFGDIR}")
+endif(CFGDIR)
+
 set(USE_MATCHCOMPILER "Auto" CACHE STRING "Usage of match compliler")
 set_property(CACHE USE_MATCHCOMPILER PROPERTY STRINGS Auto Off On Verify) 
 if (USE_MATCHCOMPILER STREQUAL "Auto")