Use a config symbol

package/gluon-core/Config.in

@@ -347,3 +347,6 @@ config GLUON_SPECIALIZE_KERNEL
 	select KERNEL_IP_NF_NAT
 	select KERNEL_IP_NF_TARGET_MASQUERADE
 	select KERNEL_IP_NF_TARGET_REDIRECT
+
+config GLUON_DO_NOT_MINIFY
+	bool "Disables minification of gluon scripts during build"

targets/generic

@@ -60,6 +60,9 @@ if istrue(env.GLUON_DEBUG) then
 	try_config 'CONFIG_TARGET_ROOTFS_PARTSIZE=500'
 end
 
+if envtrue.GLUON_DO_NOT_MINIFY then
+	config 'CONFIG_GLUON_DO_NOT_MINIFY=y'
+end
 
 packages {
 	'-odhcpd-ipv6only',