initial buildroot for linux 5.15

package/screen/screen.mk

@@ -0,0 +1,42 @@
+################################################################################
+#
+# screen
+#
+################################################################################
+
+SCREEN_VERSION = 4.8.0
+SCREEN_SITE = $(BR2_GNU_MIRROR)/screen
+SCREEN_LICENSE = GPL-3.0+
+SCREEN_LICENSE_FILES = COPYING
+SCREEN_CPE_ID_VENDOR = gnu
+SCREEN_SELINUX_MODULES = screen
+SCREEN_DEPENDENCIES = ncurses
+SCREEN_AUTORECONF = YES
+SCREEN_CONF_ENV = CFLAGS="$(TARGET_CFLAGS)"
+SCREEN_CONF_OPTS = --enable-colors256
+SCREEN_INSTALL_TARGET_OPTS = DESTDIR=$(TARGET_DIR) SCREEN=screen install_bin
+
+# 0008_CVE-2021-26937.patch
+SCREEN_IGNORE_CVES += CVE-2021-26937
+
+ifeq ($(BR2_PACKAGE_LINUX_PAM),y)
+SCREEN_DEPENDENCIES += linux-pam
+SCREEN_CONF_OPTS += --enable-pam
+else
+SCREEN_CONF_OPTS += --disable-pam
+endif
+
+define SCREEN_INSTALL_SCREENRC
+	$(INSTALL) -m 0755 -D $(@D)/etc/screenrc $(TARGET_DIR)/etc/screenrc
+endef
+SCREEN_POST_INSTALL_TARGET_HOOKS += SCREEN_INSTALL_SCREENRC
+
+# Add /usr/bin/screen to /etc/shells otherwise some login tools like dropbear
+# can reject the user connection. See man shells.
+define SCREEN_ADD_SCREEN_TO_SHELLS
+	grep -qsE '^/usr/bin/screen$$' $(TARGET_DIR)/etc/shells \
+		|| echo "/usr/bin/screen" >> $(TARGET_DIR)/etc/shells
+endef
+SCREEN_TARGET_FINALIZE_HOOKS += SCREEN_ADD_SCREEN_TO_SHELLS
+
+$(eval $(autotools-package))