build: remove now-unneeded function from target_config_lib.lua

target_config.lua and target_config_check.lua don't pass a table of
callbacks anymore, so target_config_lib.lua can by simplified by moving
all the code that was in the returned function to the toplevel.

scripts/target_config.lua

-local lib = dofile('scripts/target_config_lib.lua')()
+local lib = dofile('scripts/target_config_lib.lua')
 
 for _, config in pairs(lib.configs) do
 	io.stdout:write(config:format(), '\n')

scripts/target_config_check.lua

@@ -24,7 +24,7 @@ local function check_config(config)
 end
 
 
-local lib = dofile('scripts/target_config_lib.lua')()
+local lib = dofile('scripts/target_config_lib.lua')
 
 for _, config in pairs(lib.configs) do
 	if config.required then

scripts/target_config_lib.lua

+local lib = dofile('scripts/target_lib.lua')
+local env = lib.env
+
+local target = env.GLUON_TARGET
+
+assert(target)
+assert(env.BOARD)
+assert(env.SUBTARGET)
+
+local openwrt_config_target
+if env.SUBTARGET ~= '' then
+	openwrt_config_target = env.BOARD .. '_' .. env.SUBTARGET
+else
+	openwrt_config_target = env.BOARD
+end
+
+
 -- Split a string into words
 local function split(s)
 	local ret = {}
@@ -40,33 +57,18 @@ local function compact_list(list, keep_neg)
 	return ret
 end
 
-return function()
-	local lib = dofile('scripts/target_lib.lua')
-	local env = lib.env
-
-	local target = env.GLUON_TARGET
-
-	assert(target)
-	assert(env.BOARD)
-	assert(env.SUBTARGET)
-
-	local openwrt_config_target
-	if env.SUBTARGET ~= '' then
-		openwrt_config_target = env.BOARD .. '_' .. env.SUBTARGET
-	else
-		openwrt_config_target = env.BOARD
-	end
-
 
 local function site_vars(var)
-		return lib.exec_capture_raw(string.format([[
+	return lib.exec_capture_raw(string.format(
+[[
 MAKEFLAGS= make print _GLUON_SITE_VARS_=%s --no-print-directory -s -f - <<'END_MAKE'
 include $(GLUON_SITEDIR)/site.mk
 
 print:
 	echo -n '$(_GLUON_SITE_VARS_)'
 END_MAKE
-		]], lib.escape(var)))
+]],
+	lib.escape(var)))
 end
 
 local function site_packages(image)
@@ -108,13 +110,13 @@ END_MAKE
 local function config_package(pkg, v)
 	if v == false then
 		if not enabled_packages[pkg] then
-				lib.try_config('CONFIG_PACKAGE_' .. pkg, false)
+			lib.try_config('PACKAGE_' .. pkg, false)
 		end
 		return
 	end
 
 	if v == true or not enabled_packages[pkg] then
-			lib.config('CONFIG_PACKAGE_' .. pkg, v, string.format("unable to enable package '%s'", pkg))
+		lib.config('PACKAGE_' .. pkg, v, string.format("unable to enable package '%s'", pkg))
 		enabled_packages[pkg] = true
 	end
 end
@@ -135,8 +137,8 @@ END_MAKE
 lib.check_devices()
 
 if not lib.opkg then
-		lib.config('CONFIG_SIGNED_PACKAGES', false)
-		lib.config('CONFIG_CLEAN_IPKG', true)
+	lib.config('SIGNED_PACKAGES', false)
+	lib.config('CLEAN_IPKG', true)
 	lib.packages {'-opkg'}
 end
 
@@ -161,13 +163,13 @@ END_MAKE
 		handle_pkgs(dev.options.packages or {})
 		handle_pkgs(site_packages(dev.image))
 
+		local profile_config = string.format('%s_DEVICE_%s', openwrt_config_target, profile)
 		lib.config(
-				string.format('CONFIG_TARGET_DEVICE_%s_DEVICE_%s', openwrt_config_target, profile),
-				true,
+			'TARGET_DEVICE_' .. profile_config, true,
 			string.format("unable to enable device '%s'", profile)
 		)
 		lib.config(
-				string.format('CONFIG_TARGET_DEVICE_PACKAGES_%s_DEVICE_%s', openwrt_config_target, profile),
+			'TARGET_DEVICE_PACKAGES_' .. profile_config,
 			table.concat(device_pkgs, ' ')
 		)
 	end
@@ -190,4 +192,3 @@ END_MAKE
 end
 
 return lib
-end

scripts/target_lib.lua

@@ -164,7 +164,7 @@ local function format_config(k, v)
 	else
 		format = '%s=%d'
 	end
-	return string.format(format, k, v)
+	return string.format(format, 'CONFIG_' .. k, v)
 end
 
 local config_mt = {

targets/ar71xx-generic

-config('CONFIG_GLUON_SPECIALIZE_KERNEL', true)
-config('CONFIG_TARGET_SQUASHFS_BLOCK_SIZE', 64)
+config('GLUON_SPECIALIZE_KERNEL', true)
+config('TARGET_SQUASHFS_BLOCK_SIZE', 64)
 
 local ATH10K_PACKAGES = {
 	'kmod-ath10k',

targets/ar71xx-mikrotik

-config('CONFIG_GLUON_SPECIALIZE_KERNEL', true)
+config('GLUON_SPECIALIZE_KERNEL', true)
 
 defaults {
 	factory = false,

targets/ar71xx-nand

-config('CONFIG_GLUON_SPECIALIZE_KERNEL', true)
+config('GLUON_SPECIALIZE_KERNEL', true)
 
 local ATH10K_PACKAGES = {'kmod-ath10k', '-kmod-ath10k-ct', 'ath10k-firmware-qca988x', '-ath10k-firmware-qca988x-ct'}
 

targets/ar71xx-tiny

-config('CONFIG_GLUON_SPECIALIZE_KERNEL', true)
+config('GLUON_SPECIALIZE_KERNEL', true)
 
 no_opkg()
 

targets/generic

 assert(env.GLUON_LANGS)
 
 
-config('CONFIG_GLUON_SITEDIR', env.GLUON_SITEDIR)
-config('CONFIG_GLUON_RELEASE', env.GLUON_RELEASE)
-try_config('CONFIG_GLUON_BRANCH', env.GLUON_BRANCH or '')
+config('GLUON_SITEDIR', env.GLUON_SITEDIR)
+config('GLUON_RELEASE', env.GLUON_RELEASE)
+try_config('GLUON_BRANCH', env.GLUON_BRANCH or '')
 
 for lang in string.gmatch(env.GLUON_LANGS, '%S+') do
-	try_config('CONFIG_GLUON_WEB_LANG_' .. lang, true)
+	try_config('GLUON_WEB_LANG_' .. lang, true)
 end
 
-config('CONFIG_TARGET_' .. env.BOARD, true)
+config('TARGET_' .. env.BOARD, true)
 if env.SUBTARGET ~= '' then
-	config(string.format('CONFIG_TARGET_%s_%s', env.BOARD, env.SUBTARGET), true)
+	config(string.format('TARGET_%s_%s', env.BOARD, env.SUBTARGET), true)
 end
 
 -- Disable non-default feeds in distfeeds.conf
-config('CONFIG_FEED_gluon_base', false)
+config('FEED_gluon_base', false)
 
 local default_feeds = {}
 for feed in string.gmatch(exec_capture_raw('. scripts/default_feeds.sh && echo "$DEFAULT_FEEDS"'), '%S+') do
@@ -24,46 +24,46 @@ end
 
 for feed in string.gmatch(exec_capture_raw('. scripts/modules.sh && echo -n "$FEEDS"'), '%S+') do
 	if not default_feeds[feed] then
-		config('CONFIG_FEED_' .. feed, false)
+		config('FEED_' .. feed, false)
 	end
 end
 
 
-config('CONFIG_TARGET_ROOTFS_INITRAMFS', false)
+config('TARGET_ROOTFS_INITRAMFS', false)
 
-config('CONFIG_DEVEL', true)
-config('CONFIG_ALL_NONSHARED', true)
+config('DEVEL', true)
+config('ALL_NONSHARED', true)
 
-config('CONFIG_PACKAGE_usbip', false) -- fails to build
-config('CONFIG_PACKAGE_kmod-jool', false) -- fails to build
+config('PACKAGE_usbip', false) -- fails to build
+config('PACKAGE_kmod-jool', false) -- fails to build
 
-config('CONFIG_BUSYBOX_CUSTOM', true)
-config('CONFIG_BUSYBOX_CONFIG_FEATURE_PREFER_IPV4_ADDRESS', false)
+config('BUSYBOX_CUSTOM', true)
+config('BUSYBOX_CONFIG_FEATURE_PREFER_IPV4_ADDRESS', false)
 
-config('CONFIG_PACKAGE_ATH_DEBUG', true)
+config('PACKAGE_ATH_DEBUG', true)
 
-try_config('CONFIG_TARGET_SQUASHFS_BLOCK_SIZE', 256)
+try_config('TARGET_SQUASHFS_BLOCK_SIZE', 256)
 
-config('CONFIG_KERNEL_IP_MROUTE', false)
-config('CONFIG_KERNEL_IPV6_MROUTE', false)
+config('KERNEL_IP_MROUTE', false)
+config('KERNEL_IPV6_MROUTE', false)
 
-try_config('CONFIG_TARGET_MULTI_PROFILE', true)
-try_config('CONFIG_TARGET_PER_DEVICE_ROOTFS', true)
+try_config('TARGET_MULTI_PROFILE', true)
+try_config('TARGET_PER_DEVICE_ROOTFS', true)
 
-config('CONFIG_GLUON_MULTIDOMAIN', istrue(env.GLUON_MULTIDOMAIN))
+config('GLUON_MULTIDOMAIN', istrue(env.GLUON_MULTIDOMAIN))
 
-config('CONFIG_AUTOREMOVE', istrue(env.GLUON_AUTOREMOVE))
+config('AUTOREMOVE', istrue(env.GLUON_AUTOREMOVE))
 
 if istrue(env.GLUON_DEBUG) then
-	config('CONFIG_DEBUG', true)
-	config('CONFIG_NO_STRIP', true)
-	config('CONFIG_USE_STRIP', false)
-	config('CONFIG_USE_SSTRIP', false)
+	config('DEBUG', true)
+	config('NO_STRIP', true)
+	config('USE_STRIP', false)
+	config('USE_SSTRIP', false)
 
-	try_config('CONFIG_TARGET_ROOTFS_PARTSIZE', 500)
+	try_config('TARGET_ROOTFS_PARTSIZE', 500)
 end
 
-config('CONFIG_GLUON_MINIFY', istrue(env.GLUON_MINIFY))
+config('GLUON_MINIFY', istrue(env.GLUON_MINIFY))
 
 packages {
 	'-kmod-ipt-offload',

targets/ramips-rt305x

-config('CONFIG_KERNEL_KALLSYMS', false)
-config('CONFIG_GLUON_SPECIALIZE_KERNEL', true)
+config('KERNEL_KALLSYMS', false)
+config('GLUON_SPECIALIZE_KERNEL', true)
 
 no_opkg()
 

targets/x86.inc

-config('CONFIG_VDI_IMAGES', true)
-config('CONFIG_VMDK_IMAGES', true)
+config('VDI_IMAGES', true)
+config('VMDK_IMAGES', true)
 
 packages {
 	'kmod-3c59x',