diff --git a/Modules/CMakeCCompilerId.c.in b/Modules/CMakeCCompilerId.c.in
index 331be069e..d6e192d60 100644
--- a/Modules/CMakeCCompilerId.c.in
+++ b/Modules/CMakeCCompilerId.c.in
@@ -160,6 +160,10 @@
    http://sdcc.sourceforge.net  */
 #elif defined(SDCC)
 # define COMPILER_ID "SDCC"
+  /* SDCC = VRP */
+#  define COMPILER_VERSION_MAJOR DEC(SDCC/100)
+#  define COMPILER_VERSION_MINOR DEC(SDCC/10 % 10)
+#  define COMPILER_VERSION_PATCH DEC(SDCC    % 10)
 
 #elif defined(_SGI_COMPILER_VERSION) || defined(_COMPILER_VERSION)
 # define COMPILER_ID "MIPSpro"