build: remove broken dependency of metadata on toplevel .config variables

Instead of relying on .config symbols for metadata, alter the DEFAULT
variable of affected packages. Fixes enabling opkg vs apk among others.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

include/target.mk

@@ -77,45 +77,9 @@ else
   endif
 endif
 
-ifneq ($(DUMP),)
-  # Parse generic config that might be set before a .config is generated to modify the
-  # default package configuration
-  # Keep DYNAMIC_DEF_PKG_CONF in sync with toplevel.mk to reflect the same configs
-  DYNAMIC_DEF_PKG_CONF := CONFIG_USE_APK CONFIG_SELINUX CONFIG_SMALL_FLASH CONFIG_SECCOMP
-  $(foreach config, $(DYNAMIC_DEF_PKG_CONF), \
-    $(eval $(config) := $(shell grep "$(config)=y" $(TOPDIR)/.config 2>/dev/null)) \
-  )
-  # The config options that are enabled by default and where other default
-  # packages depends on needs to be set if they are missing in the .config.
-  ifeq ($(shell grep "CONFIG_SECCOMP" $(TOPDIR)/.config 2>/dev/null),)
-    ifeq ($(filter $(BOARD), uml),)
-    ifneq ($(filter $(ARCH), aarch64 arm armeb mips mipsel mips64 mips64el i386 powerpc x86_64),)
-      CONFIG_SECCOMP := y
-    endif
-    endif
-  endif
-endif
-
-ifneq ($(CONFIG_USE_APK),)
-DEFAULT_PACKAGES+=apk-mbedtls
-else
-DEFAULT_PACKAGES+=opkg
-endif
-
-ifneq ($(CONFIG_SELINUX),)
-DEFAULT_PACKAGES+=busybox-selinux procd-selinux
-else
-DEFAULT_PACKAGES+=busybox procd
-endif
-
 # include ujail on systems with enough storage
-ifeq ($(CONFIG_SMALL_FLASH),)
-DEFAULT_PACKAGES+=procd-ujail
-endif
-
-# include seccomp ld-preload hooks if kernel supports it
-ifneq ($(CONFIG_SECCOMP),)
-DEFAULT_PACKAGES+=procd-seccomp
+ifeq ($(filter small_flash,$(FEATURES)),)
+  DEFAULT_PACKAGES+=procd-ujail
 endif
 
 # Add device specific packages (here below to allow device type set from subtarget)

package/system/apk/Makefile

@@ -36,6 +36,7 @@ define Package/apk-mbedtls
   $(Package/apk/default)
   TITLE += (mbedtls)
   DEPENDS +=+libmbedtls
+  DEFAULT:=y if USE_APK
   VARIANT:=mbedtls
   DEFAULT_VARIANT:=1
   CONFLICTS:=apk-openssl

package/system/opkg/Makefile

@@ -39,6 +39,7 @@ define Package/opkg
   CATEGORY:=Base system
   TITLE:=opkg package manager
   DEPENDS:=+uclient-fetch +libpthread +libubox
+  DEFAULT:=y if !USE_APK
   URL:=$(PKG_SOURCE_URL)
   MENU:=1
 endef

package/system/procd/Makefile

@@ -50,6 +50,7 @@ define Package/procd
   $(call Package/procd/Default)
   VARIANT:=default
   CONFLICTS:=procd-selinux
+  DEFAULT:=y if !SELINUX
 endef
 
 define Package/procd-selinux
@@ -58,6 +59,7 @@ define Package/procd-selinux
   TITLE += with SELinux support
   PROVIDES:=procd
   VARIANT:=selinux
+  DEFAULT:=y if SELINUX
 endef
 
 define Package/procd-ujail
@@ -73,6 +75,7 @@ define Package/procd-seccomp
   CATEGORY:=Base system
   DEPENDS:=@SECCOMP +libubox +libblobmsg-json
   TITLE:=OpenWrt process seccomp helper + utrace
+  DEFAULT:=y if SECCOMP
 endef
 
 define Package/uxc

package/utils/busybox/Makefile

@@ -56,6 +56,7 @@ define Package/busybox
   $(call Package/busybox/Default)
   CONFLICTS:=busybox-selinux
   VARIANT:=default
+  DEFAULT:=y if !SELINUX
 endef
 
 define Package/busybox-selinux
@@ -64,6 +65,7 @@ define Package/busybox-selinux
   DEPENDS += +libselinux
   VARIANT:=selinux
   PROVIDES:=busybox
+  DEFAULT:=y if SELINUX
 endef
 
 define Package/busybox/description