Move all to deprecated folder.

deprecated/firmware/buildroot/package/rtai/Config.in

@@ -0,0 +1,8 @@
+config BR2_PACKAGE_RTAI
+	bool "rtai"
+	depends on BR2_LINUX_KERNEL_EXT_RTAI
+	select BR2_LINUX_NEEDS_MODULES # not using kernel-module infra
+	help
+	  RTAI - the RealTime Application Interface for Linux.
+
+	  http://www.rtai.org

deprecated/firmware/buildroot/package/rtai/rtai.hash

@@ -0,0 +1,2 @@
+# Locally computed
+sha256 13669da744a0ba411bdb8e47fa47b6e19171646ae42c8dbb2735d12e555fb1a3 rtai-4.0.1.tar.bz2

deprecated/firmware/buildroot/package/rtai/rtai.mk

@@ -0,0 +1,32 @@
+################################################################################
+#
+# rtai
+#
+################################################################################
+
+RTAI_VERSION = 4.0.1
+RTAI_SOURCE = rtai-$(RTAI_VERSION).tar.bz2
+RTAI_SITE = https://www.rtai.org/userfiles/downloads/RTAI
+RTAI_INSTALL_STAGING = YES
+
+# The <pkg>_CONFIG_SCRIPTS cannot apply here to the specificities of rtai-config
+define RTAI_POST_PATCH_FIXUP
+	$(SED) 's%^staging=.*%staging=$(STAGING_DIR)%' $(STAGING_DIR)/usr/bin/rtai-config
+endef
+
+RTAI_POST_INSTALL_STAGING_HOOKS += RTAI_POST_PATCH_FIXUP
+
+RTAI_DEPENDENCIES = linux
+
+RTAI_CONF_OPTS = \
+	--includedir=/usr/include/rtai \
+	--with-linux-dir=$(LINUX_DIR) 	\
+	--disable-leds		      	\
+	--enable-usi			\
+	--enable-align-priority		\
+	--disable-rtailab		\
+	--with-module-dir=/lib/modules/$(LINUX_VERSION_PROBED)/rtai
+
+RTAI_MAKE = $(MAKE1)
+
+$(eval $(autotools-package))