From 033a94917a763063b30bd66c37301e953721ec31 Mon Sep 17 00:00:00 2001
From: Torsten Wierschin <torsten.wierschin@life-maps.com>
Date: Fri, 17 Jul 2026 12:59:36 +0200
Subject: [PATCH] chore(cmake): make RTI codegen macro tolerant when RTI is not
 installed (skip RTIDDSGEN)

---
 cmake/MacroRTIDDSGen.cmake | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/cmake/MacroRTIDDSGen.cmake b/cmake/MacroRTIDDSGen.cmake
index b8daeb8b1..29b4973e2 100755
--- a/cmake/MacroRTIDDSGen.cmake
+++ b/cmake/MacroRTIDDSGen.cmake
@@ -13,13 +13,18 @@
 
 
 
-MACRO(RTIDDSGEN srcList infile)
-  FIND_PACKAGE(RTI REQUIRED)
-
-  SET(input ${infile})
-  IF(NOT IS_ABSOLUTE ${input})
-    SET(input "${CMAKE_CURRENT_BINARY_DIR}/${input}")
-  ENDIF()
+MACRO(RTIDDSGEN srcList infile)
+  # RTI (DDS) code generation is optional during migration; if RTI is not found, skip code generation.
+  FIND_PACKAGE(RTI)
+  if (NOT RTI_FOUND)
+    message(STATUS "RTI not found; skipping RTI IDL code generation for ${infile}")
+    return()
+  endif()
+
+  SET(input ${infile})
+  IF(NOT IS_ABSOLUTE ${input})
+    SET(input "${CMAKE_CURRENT_BINARY_DIR}/${input}")
+  ENDIF()
   GET_FILENAME_COMPONENT(output  ${infile} NAME_WE)
   GET_FILENAME_COMPONENT(input   ${input} ABSOLUTE)