From 2fc24282e3bcfcbbd4359e50ec0e5dc8690c9963 Mon Sep 17 00:00:00 2001
From: Gabriel Ferreira <gabrielcarvfer@gmail.com>
Date: Fri, 16 May 2025 12:14:26 +0200
Subject: [PATCH] build, lte: Only enable emulation features when EmuNetDevice
 dependencies are met

---
 build-support/macros-and-definitions.cmake | 9 +++++++++
 src/lte/CMakeLists.txt                     | 4 +++-
 src/lte/examples/CMakeLists.txt            | 4 +++-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/build-support/macros-and-definitions.cmake b/build-support/macros-and-definitions.cmake
index 5f7606904..35eb4163a 100644
--- a/build-support/macros-and-definitions.cmake
+++ b/build-support/macros-and-definitions.cmake
@@ -1174,6 +1174,15 @@ macro(process_options)
     set(ENABLE_TAP OFF)
     set(ENABLE_EMU OFF)
     set(ENABLE_FDNETDEV FALSE)
+    mark_as_advanced(
+      ENABLE_FDNETDEV ENABLE_DPDKDEVNET ENABLE_TAPNETDEV ENABLE_EMUNETDEV
+      ENABLE_NETMAP_EMU
+    )
+    set(ENABLE_FDNETDEV False CACHE INTERNAL "")
+    set(ENABLE_DPDKDEVNET False CACHE INTERNAL "")
+    set(ENABLE_TAPNETDEV False CACHE INTERNAL "")
+    set(ENABLE_EMUNETDEV False CACHE INTERNAL "")
+    set(ENABLE_NETMAP_EMU False CACHE INTERNAL "")
     list(REMOVE_ITEM libs_to_build fd-net-device)
     message(
       STATUS
diff --git a/src/lte/CMakeLists.txt b/src/lte/CMakeLists.txt
index f5bfccaba..91911b255 100644
--- a/src/lte/CMakeLists.txt
+++ b/src/lte/CMakeLists.txt
@@ -2,7 +2,9 @@ set(emu_sources)
 set(emu_headers)
 set(emu_features)
 set(emu_libraries)
-if(${ENABLE_EMU})
+if(${ENABLE_EMU}
+   AND ${ENABLE_EMUNETDEV}
+)
   set(emu_sources
       helper/emu-epc-helper.cc
   )
diff --git a/src/lte/examples/CMakeLists.txt b/src/lte/examples/CMakeLists.txt
index 2f0d08add..525502e76 100644
--- a/src/lte/examples/CMakeLists.txt
+++ b/src/lte/examples/CMakeLists.txt
@@ -36,7 +36,9 @@ foreach(
   )
 endforeach()
 
-if(${ENABLE_EMU})
+if(${ENABLE_EMU}
+   AND ${ENABLE_EMUNETDEV}
+)
   build_lib_example(
     NAME lena-simple-epc-emu
     SOURCE_FILES lena-simple-epc-emu.cc