Add includes to user model make file

src/epics/util/lib/createUserModuleBuildEnv.pm

@@ -232,6 +232,9 @@ my ($makefileDir) = @_;
 
     print OUTM "list(APPEND INC_DIRS \"\${PROJECT_SOURCE_DIR}/../../../models/" . "\L$::skeleton" ."/include\"  \"$::rcg_src_dir\/src/include\")\n";
 
+    # add in demodulation
+    print OUTM "list(APPEND INC_DIRS \"$::rcg_src_dir/src/fe/demod\")\n";
+
     if ($::pciNet > 0 && $::virtualiop != 1) {
         print OUTM "list(APPEND LDFLAGS \"-L \${API_LIB_PATH} -lsisci \")\n";
     } else {