Update buildroot to 2021.02.2 (#1370)

buildroot/package/bash/bash.mk

@@ -7,11 +7,16 @@
 BASH_VERSION = 5.0
 BASH_SITE = $(BR2_GNU_MIRROR)/bash
 BASH_DEPENDENCIES = ncurses readline host-bison
-BASH_CONF_OPTS = --with-installed-readline --without-bash-malloc
 BASH_LICENSE = GPL-3.0+
 BASH_LICENSE_FILES = COPYING
 BASH_CPE_ID_VENDOR = gnu
 
+# We want the bash binary in /bin
+BASH_CONF_OPTS = \
+	--bindir=/bin \
+	--with-installed-readline \
+	--without-bash-malloc
+
 BASH_CONF_ENV += \
 	ac_cv_rl_prefix="$(STAGING_DIR)" \
 	ac_cv_rl_version="$(READLINE_VERSION)" \
@@ -24,7 +29,6 @@ BASH_CONF_ENV += \
 # The static build needs some trickery
 ifeq ($(BR2_STATIC_LIBS),y)
 BASH_CONF_OPTS += --enable-static-link
-BASH_CONF_ENV += SHOBJ_STATUS=unsupported
 # bash wants to redefine the getenv() function. To check whether this is
 # possible, AC_TRY_RUN is used which is not possible in
 # cross-compilation.
@@ -38,11 +42,10 @@ BASH_CONF_ENV += bash_cv_getenv_redef=yes
 endif
 endif
 
-define BASH_INSTALL_TARGET_CMDS
-	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) \
-		DESTDIR=$(TARGET_DIR) exec_prefix=/ install
+define BASH_REMOVE_UNUSED_FILES
 	rm -f $(TARGET_DIR)/bin/bashbug
 endef
+BASH_POST_INSTALL_TARGET_HOOKS += BASH_REMOVE_UNUSED_FILES
 
 # Add /bin/bash to /etc/shells otherwise some login tools like dropbear
 # can reject the user connection. See man shells.