From 1e7b4816c172c37280da0e47852c7c086be241e0 Mon Sep 17 00:00:00 2001
From: Bjarne von Horn <vh@igh.de>
Date: Wed, 31 Jan 2024 13:21:50 +0100
Subject: [PATCH] Add rtai modules to KBUILD_EXTRA_SYMBOLS

---
 Kbuild.in    | 5 +++++
 configure.ac | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/Kbuild.in b/Kbuild.in
index 546430bc..4cc9eb9f 100644
--- a/Kbuild.in
+++ b/Kbuild.in
@@ -27,4 +27,9 @@ ifeq (@ENABLE_TTY@,1)
 	obj-m += tty/
 endif
 
+ifeq (@ENABLE_RTAI@, 1)
+KBUILD_EXTRA_SYMBOLS := \
+	@RTAI_MODULE_DIR@/Module.symvers
+endif
+
 #-----------------------------------------------------------------------------
diff --git a/configure.ac b/configure.ac
index 576c12eb..7a9d22d1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -695,6 +695,7 @@ else
 
     rtai_lxrt_cflags=`$rtaidir/bin/rtai-config --lxrt-cflags`
     rtai_lxrt_ldflags=`$rtaidir/bin/rtai-config --lxrt-ldflags`
+    rtai_module_dir=`$rtaidir/bin/rtai-config --module-dir`
 fi
 
 AC_SUBST(RTAI_DIR,[$rtaidir])
@@ -703,6 +704,7 @@ AC_SUBST(ENABLE_RTAI,[$rtai])
 
 AC_SUBST(RTAI_LXRT_CFLAGS,[$rtai_lxrt_cflags])
 AC_SUBST(RTAI_LXRT_LDFLAGS,[$rtai_lxrt_ldflags])
+AC_SUBST(RTAI_MODULE_DIR,[$rtai_module_dir])
 
 #-----------------------------------------------------------------------------
 # Xenomai path (optional)