Bump buildroot to 2019.02

bsp/buildroot/package/autofs/Config.in

@@ -2,8 +2,9 @@ config BR2_PACKAGE_AUTOFS
 	bool "autofs"
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	depends on BR2_USE_MMU
-	depends on BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	depends on !BR2_STATIC_LIBS # dlfcn
+	depends on !BR2_TOOLCHAIN_USES_MUSL # nsswitch
+	select BR2_PACKAGE_LIBTIRPC if !BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	help
 	  Autofs controls the operation of the automount daemons. The
 	  automount daemons automatically mount filesystems when they
@@ -15,7 +16,7 @@ config BR2_PACKAGE_AUTOFS
 
 	  http://www.linuxfromscratch.org/blfs/view/svn/general/autofs.html
 
-comment "autofs needs a toolchain w/ NPTL, RPC, dynamic library"
+comment "autofs needs a glibc or uClibc toolchain w/ NPTL and dynamic library"
 	depends on BR2_USE_MMU
-	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS || \
-		!BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
+		|| BR2_TOOLCHAIN_USES_MUSL

bsp/buildroot/package/autofs/autofs.mk

@@ -9,7 +9,7 @@ AUTOFS_SOURCE = autofs-$(AUTOFS_VERSION).tar.xz
 AUTOFS_SITE = $(BR2_KERNEL_MIRROR)/linux/daemons/autofs/v5
 AUTOFS_LICENSE = GPL-2.0+
 AUTOFS_LICENSE_FILES = COPYING COPYRIGHT
-AUTOFS_DEPENDENCIES = host-flex host-bison host-nfs-utils
+AUTOFS_DEPENDENCIES = host-flex host-bison host-pkgconf host-nfs-utils
 
 # autofs looks on the build machine for the path of modprobe, so tell
 # it explicitly where it will be located on the target.
@@ -31,4 +31,11 @@ AUTOFS_CONF_OPTS = \
 
 AUTOFS_MAKE_ENV = DONTSTRIP=1
 
+ifeq ($(BR2_PACKAGE_LIBTIRPC),y)
+AUTOFS_CONF_OPTS += --with-libtirpc
+AUTOFS_DEPENDENCIES += libtirpc
+else
+AUTOFS_CONF_OPTS += --without-libtirpc
+endif
+
 $(eval $(autotools-package))