[PATCH] busybox: Enable FEATURE_MOUNT_NFS and use libtirpc

[Martin Jansa <martin.jansa@gmail.com>]

* We dropped in-tree obsoleted rpc from glibc and now busybox builds
  which had CONFIG_FEATURE_MOUNT_NFS enabled were failing with:
  | util-linux/mount.c:252:11: fatal error: rpc/rpc.h: No such file or directory
  |  # include <rpc/rpc.h>
  |            ^~~~~~~~~~~
  | compilation terminated.
  | make[1]: *** [util-linux/mount.o] Error 1

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
---
 meta/recipes-core/busybox/busybox.inc       | 6 +++---
 meta/recipes-core/busybox/busybox/defconfig | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/meta/recipes-core/busybox/busybox.inc b/meta/recipes-core/busybox/busybox.inc
index d1675c37aa..2db19ed317 100644
--- a/meta/recipes-core/busybox/busybox.inc
+++ b/meta/recipes-core/busybox/busybox.inc
@@ -3,7 +3,7 @@ DESCRIPTION = "BusyBox combines tiny versions of many common UNIX utilities into
 HOMEPAGE = "http://www.busybox.net"
 BUGTRACKER = "https://bugs.busybox.net/"
 
-DEPENDS += "kern-tools-native"
+DEPENDS += "kern-tools-native libtirpc"
 
 # bzip2 applet in busybox is based on lightly-modified bzip2 source
 # the GPL is version 2 only
@@ -15,8 +15,8 @@ SECTION = "base"
 # Whether to split the suid apps into a seperate binary
 BUSYBOX_SPLIT_SUID ?= "1"
 
-export EXTRA_CFLAGS = "${CFLAGS}"
-export EXTRA_LDFLAGS = "${LDFLAGS}"
+export EXTRA_CFLAGS = "${CFLAGS} -I${STAGING_INCDIR}/tirpc"
+export EXTRA_LDFLAGS = "${LDFLAGS} -ltirpc"
 
 EXTRA_OEMAKE = "CC='${CC}' LD='${CCLD}' V=1 ARCH=${TARGET_ARCH} CROSS_COMPILE=${TARGET_PREFIX} SKIP_STRIP=y HOSTCC='${BUILD_CC}' HOSTCPP='${BUILD_CPP}'"
 
diff --git a/meta/recipes-core/busybox/busybox/defconfig b/meta/recipes-core/busybox/busybox/defconfig
index fbb5fd852c..816555fc21 100644
--- a/meta/recipes-core/busybox/busybox/defconfig
+++ b/meta/recipes-core/busybox/busybox/defconfig
@@ -638,7 +638,7 @@ CONFIG_MOUNT=y
 # CONFIG_FEATURE_MOUNT_VERBOSE is not set
 # CONFIG_FEATURE_MOUNT_HELPERS is not set
 # CONFIG_FEATURE_MOUNT_LABEL is not set
-# CONFIG_FEATURE_MOUNT_NFS is not set
+CONFIG_FEATURE_MOUNT_NFS=y
 # CONFIG_FEATURE_MOUNT_CIFS is not set
 CONFIG_FEATURE_MOUNT_FLAGS=y
 CONFIG_FEATURE_MOUNT_FSTAB=y
-- 
2.17.0