From 23c9353cd86bcecd9d1220bbb2277d5ffb834e7c Mon Sep 17 00:00:00 2001
From: Liam Fraser <liam@raspberrypi.com>
Date: Thu, 18 Jul 2024 11:08:23 +0100
Subject: [PATCH] net_lwip_webserver: allow TINYUSB_LWIP_PATH to be defined by
 parent CMake file

---
 examples/device/net_lwip_webserver/CMakeLists.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/examples/device/net_lwip_webserver/CMakeLists.txt b/examples/device/net_lwip_webserver/CMakeLists.txt
index c39fd32c5..13923b583 100644
--- a/examples/device/net_lwip_webserver/CMakeLists.txt
+++ b/examples/device/net_lwip_webserver/CMakeLists.txt
@@ -5,7 +5,14 @@ include(${CMAKE_CURRENT_LIST_DIR}/../../../hw/bsp/family_support.cmake)
 # gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
 family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
 
+# Prefer the tinyusb lwip
 set(LWIP ${TOP}/lib/lwip)
+
+# If we can't find one from tinyusb then check cmake var before giving up
+if (NOT EXISTS ${LWIP}/src)
+  set(LWIP ${TINYUSB_LWIP_PATH})
+endif()
+
 if (NOT EXISTS ${LWIP}/src)
   family_example_missing_dependency(${PROJECT} "lib/lwip")
   return()